[nRF52DK] Unable to Recover due to Error -21

[crasbe]

Hello everyone!

We were working with our nRF52DK boards and one of our students had issues flashing a board. He used a recent version of Segger J-Link Commander (V9.30 as far as I remember).

It is not possible to recover the device anymore. We got it working once by replacing the J-Link firmware with an older V8.10f version, but as soon as the board is power cycled, it does not recover successfully anymore.

We flahsed a RIOT OS application on it and during the flashing process, the UICR register is set to enable the Pinreset for Pin 15 with this J-Link command after flashing the memory:
`Write4 0x10001200 00000015 00000015`

Holding the reset button while connecting the nRF52DK to the computer does not have any effect, but we disabled the J-Link Mass Storage Device as it does not work anyway.

Solder Bridge SB9 is not cut.

The programs are running on WSL, but running the same programs in a native Linux environment yields the same errors.

The board is a PCA10040 3.0.0 from 2023.9 Serial 1050351525.

Logs from `nrfjprog`:

cbuec@W11nMate:~$ nrfjprog --version
nrfjprog version: 10.24.2 external
JLinkARM.dll version: 8.10f
cbuec@W11nMate:~$ nrfjprog --recover --log
Recovering device. This operation might take 30s.
[error] [ Client] - Encountered error -21: Command recover executed for 30373 milliseconds with result -21
[error] [ Worker] - Encountered error while performing post-recover cleanup. -90: Access protection is enabled, can't read device version.
ERROR: Recover failed. Please make sure that the correct device family is given
ERROR: and try again.

[2026-Jul-06 14:30:50] [debug] --------------------------------------------------------------------------------
[2026-Jul-06 14:30:50] [debug] nrfjprog --recover --log
[2026-Jul-06 14:30:50] [debug] nrfjprog version 10.24.2 external
[2026-Jul-06 14:30:50] [debug] --------------------------------------------------------------------------------
[2026-Jul-06 14:30:50] [ info] Load library at /opt/nrf-command-line-tools/lib/libnrfjprogdll.so.
[2026-Jul-06 14:30:50] [ info] Library loaded, loading member functions.
[2026-Jul-06 14:30:50] [ info] Member functions succesfully loaded.
[2026-Jul-06 14:30:50] [debug] [ Client] - open
[2026-Jul-06 14:30:50] [debug] [ Client] - start
[2026-Jul-06 14:30:50] [ info] [ Client] - stdout: Jlinkarm nRF Worker ready. Handling sequence 47c34c86-0a5e-42e4-997e-165821d33969.
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Logger sink registered in Segger backend logger
[2026-Jul-06 14:30:50] [debug] [  JLink] - Logger sink registered in JLink logger
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - open
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - just_check_family
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - open_dll
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - No J-Link DLL path was provided. Attempting to auto detect.
[2026-Jul-06 14:30:50] [ info] [SeggerBackend] - Load library at /opt/SEGGER/JLink/libjlinkarm.so.8.
[2026-Jul-06 14:30:50] [trace] [ Client] - Command open executed for 12 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - config
[2026-Jul-06 14:30:50] [ info] [SeggerBackend] - Library loaded, loading member functions.
[2026-Jul-06 14:30:50] [ info] [SeggerBackend] - Member functions succesfully loaded.
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Set batch mode
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - dll_version
[2026-Jul-06 14:30:50] [ info] [SeggerBackend] - Segger dll version 8.10.f loaded.
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command open executed for 10 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - config
[2026-Jul-06 14:30:50] [trace] [ Client] - Command config executed for 2 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - enum_emu_snr
[2026-Jul-06 14:30:50] [trace] [ Client] - Command enum_emu_con_info executed for 5 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - connect_to_emu_with_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - enum_emu_snr
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command config executed for 2 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - enum_emu_con_info
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - enum_emu_con_info
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command enum_emu_con_info executed for 5 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - connect_to_emu_with_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - connect_to_emu_with_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_enum_emu_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_get_num_emus
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_connect_to_emu_with_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_connect_to_emu_without_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Segger logging enabled.
[2026-Jul-06 14:30:50] [trace] [  JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Oct  9 2024 11:01:34
[2026-Jul-06 14:30:50] [trace] [  JLink] - Firmware: J-Link OB-nRF5340-NordicSemi compiled Oct  9 2024 11:01:34
[2026-Jul-06 14:30:50] [trace] [  JLink] - Hardware: V1.00
[2026-Jul-06 14:30:50] [trace] [  JLink] - S/N: 1050351525
[2026-Jul-06 14:30:50] [trace] [  JLink] - OEM: SEGGER
[2026-Jul-06 14:30:50] [trace] [  JLink] - Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB
[2026-Jul-06 14:30:50] [trace] [  JLink] - Bootloader: 2021 May 18
[2026-Jul-06 14:30:50] [trace] [  JLink] - USB speed mode: Full speed (12 MBit/s)
[2026-Jul-06 14:30:50] [trace] [  JLink] - TELNET listener socket opened on port 19021
[2026-Jul-06 14:30:50] [trace] [  JLink] - WEBSRV WEBSRV_Init(): Starting webserver thread(s)
[2026-Jul-06 14:30:50] [trace] [  JLink] - WEBSRV Webserver running on local port 19080
[2026-Jul-06 14:30:50] [trace] [  JLink] - Looking for J-Link GUI Server exe at: /opt/SEGGER/JLink/JLinkGUIServerExe
[2026-Jul-06 14:30:50] [trace] [  JLink] - Forking J-Link GUI Server: /opt/SEGGER/JLink/JLinkGUIServerExe
[2026-Jul-06 14:30:50] [trace] [  JLink] - J-Link GUI Server info: "J-Link GUI server V8.10f "
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 89.358ms returns "O.K."
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_Lock()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_ExecCommand("SetRestartOnClose = 0", ...).
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.001ms returns 0x01
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_ExecCommand("DisableFlashDL", ...).
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.001ms returns 0x00
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_ExecCommand("ExcludeFlashCacheRange 0x0-0xFFFFFFFF", ...).
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.001ms returns 0x00
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_SetHookUnsecureDialog
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_SetHookUnsecureDialog(...)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.004ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_TIF_Select(JLINKARM_TIF_SWD)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 3.861ms returns 0x00
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_GetSpeedInfo()
[2026-Jul-06 14:30:50] [trace] [  JLink] - 128000000 Hz / n, n >= 64
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.005ms
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Connected emulator supports SWD speeds up to 2000kHz
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_SetSpeed(2000)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.712ms
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_GetSpeed()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.003ms returns 2000
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - SWD clock set to 2000kHz
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_GetSN()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.002ms returns 1050351525
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.003ms
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - read_device_family
[2026-Jul-06 14:30:50] [debug] [  nRFXX] - read_device_family
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_IsOpen()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.004ms returns 0x01
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_Lock()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_debug_port_idr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - coresight_configure
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_GetHWStatus(...)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.944ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_Configure()
[2026-Jul-06 14:30:50] [trace] [ Client] - Command connect_to_emu_with_snr executed for 140 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - read_connected_emu_snr
[2026-Jul-06 14:30:50] [trace] [ Client] - Command read_connected_emu_snr executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - read_device_family
[2026-Jul-06 14:30:50] [trace] [ Client] - Command read_device_family executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - select_family
[2026-Jul-06 14:30:50] [trace] [ Client] - Command select_family executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [ Client] - recover
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.123ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_debug_port_idr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.805ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x2BA01477
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.841ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x00)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x2BA01477
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.013ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [ info] [  nRFXX] - Discovered device from family NRF52.
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.047ms
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - set_core_data
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Set core data:
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Device ID: nRF52
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Expected core: 234881279
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Existing Expected core: 4294967295
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Coprocessor: APPLICATION
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   AHB AP index: 0
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Core base address: 4294967295
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---set_coresight_ahb_ap_index
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_ExecCommand("CORESIGHT_SetIndexAHBAPToUse = 0", ...).
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.002ms returns 0x00
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_ExecCommand("device = nRF52", ...).
[2026-Jul-06 14:30:50] [trace] [  JLink] - Device "NRF52" selected.
[2026-Jul-06 14:30:50] [trace] [  JLink] - Device "NRF52" selected.
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.113ms returns 0x00
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command connect_to_emu_with_snr executed for 140 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRF52] - read_connected_emu_snr
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_IsOpen()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.008ms returns 0x01
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_Lock()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_connected_emu_snr
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.004ms
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command read_connected_emu_snr executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRF52] - read_device_family
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command read_device_family executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - set_core_data
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Set core data:
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Device ID: nRF52
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Expected core: 234881279
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Existing Expected core: 234881279
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Coprocessor: APPLICATION
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   AHB AP index: 0
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] -   Core base address: 4294967295
[2026-Jul-06 14:30:50] [trace] [ Worker] - Command select_family executed for 0 milliseconds with result 0
[2026-Jul-06 14:30:50] [debug] [  nRF52] - recover
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_IsOpen()
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.007ms returns 0x01
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_Lock()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - is_connected_to_emu
[2026-Jul-06 14:30:50] [debug] [  nRF52] - Just_recover
[2026-Jul-06 14:30:50] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_is_debug_region_powered
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_debug_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Select AP 255, DP Bank 0, AP Bank 255
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x00000000)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 2.317ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(DP reg 0x01)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0xF0000040
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.557ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.029ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.889ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.195ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.170ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.046ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 0.883ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000001)
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.154ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:50] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:50] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:50] [trace] [  JLink] - - 1.651ms returns 0
[2026-Jul-06 14:30:50] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:51] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:51] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:51] [trace] [  JLink] - - 1.891ms returns 0
[2026-Jul-06 14:30:51] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:51] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:51] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:51] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:51] [trace] [  JLink] - - 1.642ms returns 0
[2026-Jul-06 14:30:51] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:52] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:52] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:52] [trace] [  JLink] - - 0.987ms returns 0
[2026-Jul-06 14:30:52] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:52] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:52] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:52] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:52] [trace] [  JLink] - - 0.924ms returns 0
[2026-Jul-06 14:30:52] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:53] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:53] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:53] [trace] [  JLink] - - 1.045ms returns 0
[2026-Jul-06 14:30:53] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:53] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:53] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:53] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:53] [trace] [  JLink] - - 3.833ms returns 0
[2026-Jul-06 14:30:53] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:54] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:54] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:54] [trace] [  JLink] - - 2.180ms returns 0
[2026-Jul-06 14:30:54] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:54] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:54] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:54] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:54] [trace] [  JLink] - - 1.228ms returns 0
[2026-Jul-06 14:30:54] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:55] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:55] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:55] [trace] [  JLink] - - 1.723ms returns 0
[2026-Jul-06 14:30:55] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:55] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:55] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:55] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:55] [trace] [  JLink] - - 2.278ms returns 0
[2026-Jul-06 14:30:55] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:56] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:56] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:56] [trace] [  JLink] - - 2.812ms returns 0
[2026-Jul-06 14:30:56] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:56] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:56] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:56] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:56] [trace] [  JLink] - - 1.902ms returns 0
[2026-Jul-06 14:30:56] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:57] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:57] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:57] [trace] [  JLink] - - 2.234ms returns 0
[2026-Jul-06 14:30:57] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:57] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:57] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:57] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:57] [trace] [  JLink] - - 3.008ms returns 0
[2026-Jul-06 14:30:57] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:58] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:58] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:58] [trace] [  JLink] - - 3.303ms returns 0
[2026-Jul-06 14:30:58] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:58] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:58] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:58] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:58] [trace] [  JLink] - - 3.067ms returns 0
[2026-Jul-06 14:30:58] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:59] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:59] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:59] [trace] [  JLink] - - 1.743ms returns 0
[2026-Jul-06 14:30:59] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:30:59] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:30:59] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:30:59] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:30:59] [trace] [  JLink] - - 2.041ms returns 0
[2026-Jul-06 14:30:59] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 2.760ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [  nRF52] - Just_debug_reset
[2026-Jul-06 14:31:00] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.639ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 2.658ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.872ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.699ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.998ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 2.510ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000001)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 3.051ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000000)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.862ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000000)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.762ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [  nRF52] - Just_readback_status
[2026-Jul-06 14:31:00] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.986ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.977ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.331ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.703ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.334ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.682ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.633ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.393ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.354ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.279ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [ info] [  nRF52] - Protection status read as APPROTECT -> ALL
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000001)
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 1.324ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:00] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:00] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:00] [trace] [  JLink] - - 2.225ms returns 0
[2026-Jul-06 14:31:00] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:01] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:01] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:01] [trace] [  JLink] - - 2.533ms returns 0
[2026-Jul-06 14:31:01] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:01] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:01] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:01] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:01] [trace] [  JLink] - - 1.858ms returns 0
[2026-Jul-06 14:31:01] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:02] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:02] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:02] [trace] [  JLink] - - 2.004ms returns 0
[2026-Jul-06 14:31:02] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:02] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:02] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:02] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:02] [trace] [  JLink] - - 3.012ms returns 0
[2026-Jul-06 14:31:02] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:03] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:03] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:03] [trace] [  JLink] - - 1.961ms returns 0
[2026-Jul-06 14:31:03] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:03] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:03] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:03] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:03] [trace] [  JLink] - - 2.218ms returns 0
[2026-Jul-06 14:31:03] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:04] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:04] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:04] [trace] [  JLink] - - 1.723ms returns 0
[2026-Jul-06 14:31:04] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:04] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:04] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:04] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:04] [trace] [  JLink] - - 4.416ms returns 0
[2026-Jul-06 14:31:04] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:05] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:05] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:05] [trace] [  JLink] - - 3.025ms returns 0
[2026-Jul-06 14:31:05] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:05] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:05] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:05] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:05] [trace] [  JLink] - - 7.445ms returns 0
[2026-Jul-06 14:31:05] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:06] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:06] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:06] [trace] [  JLink] - - 3.238ms returns 0
[2026-Jul-06 14:31:06] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:06] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:06] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:06] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:06] [trace] [  JLink] - - 2.266ms returns 0
[2026-Jul-06 14:31:06] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:07] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:07] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:07] [trace] [  JLink] - - 2.139ms returns 0
[2026-Jul-06 14:31:07] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:07] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:07] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:07] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:07] [trace] [  JLink] - - 3.771ms returns 0
[2026-Jul-06 14:31:07] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:08] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:08] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:08] [trace] [  JLink] - - 1.023ms returns 0
[2026-Jul-06 14:31:08] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:08] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:08] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:08] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:08] [trace] [  JLink] - - 3.457ms returns 0
[2026-Jul-06 14:31:08] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:09] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:09] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:09] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:09] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:09] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:09] [trace] [  JLink] - - 2.914ms returns 0
[2026-Jul-06 14:31:09] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.730ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.392ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [  nRF52] - Just_debug_reset
[2026-Jul-06 14:31:10] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.267ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.017ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 3.592ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.451ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.463ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.488ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000001)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.279ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000000)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.600ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000000)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.276ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [  nRF52] - Just_readback_status
[2026-Jul-06 14:31:10] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 3.266ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.917ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.722ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.770ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.324ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.105ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.741ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.665ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.716ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:10] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 1.853ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:10] [ info] [  nRF52] - Protection status read as APPROTECT -> ALL
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:10] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000001)
[2026-Jul-06 14:31:10] [trace] [  JLink] - - 2.920ms returns 0
[2026-Jul-06 14:31:10] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:11] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:11] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:11] [trace] [  JLink] - - 4.431ms returns 0
[2026-Jul-06 14:31:11] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:11] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:11] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:11] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:11] [trace] [  JLink] - - 3.917ms returns 0
[2026-Jul-06 14:31:11] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:12] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:12] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:12] [trace] [  JLink] - - 1.448ms returns 0
[2026-Jul-06 14:31:12] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:12] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:12] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:12] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:12] [trace] [  JLink] - - 2.739ms returns 0
[2026-Jul-06 14:31:12] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:13] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:13] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:13] [trace] [  JLink] - - 1.054ms returns 0
[2026-Jul-06 14:31:13] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:13] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:13] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:13] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:13] [trace] [  JLink] - - 2.035ms returns 0
[2026-Jul-06 14:31:13] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:14] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:14] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:14] [trace] [  JLink] - - 1.176ms returns 0
[2026-Jul-06 14:31:14] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:14] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:14] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:14] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:14] [trace] [  JLink] - - 3.192ms returns 0
[2026-Jul-06 14:31:14] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:15] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:15] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:15] [trace] [  JLink] - - 1.311ms returns 0
[2026-Jul-06 14:31:15] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:15] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:15] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:15] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:15] [trace] [  JLink] - - 1.918ms returns 0
[2026-Jul-06 14:31:15] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:16] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:16] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:16] [trace] [  JLink] - - 1.101ms returns 0
[2026-Jul-06 14:31:16] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:16] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:16] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:16] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:16] [trace] [  JLink] - - 2.421ms returns 0
[2026-Jul-06 14:31:16] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:17] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:17] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:17] [trace] [  JLink] - - 1.337ms returns 0
[2026-Jul-06 14:31:17] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:17] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:17] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:17] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:17] [trace] [  JLink] - - 2.251ms returns 0
[2026-Jul-06 14:31:17] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:18] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:18] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:18] [trace] [  JLink] - - 1.054ms returns 0
[2026-Jul-06 14:31:18] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:18] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:18] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:18] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:18] [trace] [  JLink] - - 1.111ms returns 0
[2026-Jul-06 14:31:18] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:19] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:19] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:19] [trace] [  JLink] - - 1.092ms returns 0
[2026-Jul-06 14:31:19] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:19] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:19] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:19] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:19] [trace] [  JLink] - - 2.946ms returns 0
[2026-Jul-06 14:31:19] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.646ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x02)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000001
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 3.121ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_debug_reset
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.878ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 3.684ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.634ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.723ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.907ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.595ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000001)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.215ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x00, 0x00000000)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 4.244ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_write_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(AP reg 0x01, 0x00000000)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.639ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_readback_status
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 4.410ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.475ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.279ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 3.366ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.830ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.933ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.813ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.772ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.929ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.406ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [ info] [  nRF52] - Protection status read as APPROTECT -> ALL
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_read_device_version
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_readback_status
[2026-Jul-06 14:31:20] [debug] [  nRF52] - Just_is_ctrl_ap_available
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 15
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x010000F0)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 2.147ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.798ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.410ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.939ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x02880000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.878ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - Select AP 1, DP Bank 0, AP Bank 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_WriteAPDPReg(DP reg 0x02, 0x01000000)
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.739ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.294ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [error] [ Client] - Encountered error -21: Command recover executed for 30373 milliseconds with result -21
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.370ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_CORESIGHT_ReadAPDPReg(AP reg 0x03)
[2026-Jul-06 14:31:20] [trace] [  JLink] - Value=0x00000000
[2026-Jul-06 14:31:20] [trace] [  JLink] - - 1.280ms returns 0
[2026-Jul-06 14:31:20] [trace] [  JLink] - JLINK_HasError()
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_read_access_port_register
[2026-Jul-06 14:31:20] [debug] [SeggerBackend] - ---just_select_access_port_register

Logs from `JLinkExe` version 8.10f:

SEGGER J-Link Commander V8.10f (Compiled Nov  6 2024 16:11:03)
DLL version V8.10f, compiled Nov  6 2024 16:09:58

Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-nRF5340-NordicSemi compiled Oct  9 2024 11:01:34
Hardware version: V1.00
J-Link uptime (since boot): 0d 00h 15m 28s
S/N: 1050351525
License(s): RDI, FlashBP, FlashDL, JFlash, GDB
USB speed mode: Full speed (12 MBit/s)
VTref=3.300V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: NRF52
Type '?' for selection dialog
Device>nRF52832_XXAA
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>1000
Device "NRF52832_XXAA" selected.


Connecting to target via SWD
InitTarget() start
CTRL-AP indicates that the device is secured.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.

Executing default behavior previously saved in the registry.
Device will be unsecured now.
InitTarget() end - Took 4.13s
Connect failed. Resetting via Reset pin and trying again.
InitTarget() start
CTRL-AP indicates that the device is secured.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.

Executing default behavior previously saved in the registry.
Device will be unsecured now.
InitTarget() end - Took 4.12s
Error occurred: Could not connect to the target device.
For troubleshooting steps visit: https://wiki.segger.com/J-Link_Troubleshooting
J-Link>

Logs from JLinkExe version 9.56:

SEGGER J-Link Commander V9.56 (Compiled Jul  1 2026 16:55:06)
DLL version V9.56, compiled Jul  1 2026 16:54:21

Connecting to J-Link ...Updating firmware:  J-Link OB-nRF5340-NordicSemi compiled Jun 11 2026 13:12:28
Replacing firmware: J-Link OB-nRF5340-NordicSemi compiled Oct  9 2024 11:01:34
Waiting for new firmware to boot
New firmware booted successfully
O.K.
Firmware: J-Link OB-nRF5340-NordicSemi compiled Jun 11 2026 13:12:28
Hardware version: V1.00
J-Link uptime (since boot): 0d 00h 00m 05s
S/N: 1050351525
License(s): RDI,FlashBP,FlashDL,JFlash,GDB
USB speed mode: Full speed (12 MBit/s)
VTref=3.300V


Type "connect" to establish a target connection, '?' for help
J-Link>connect
Please specify device / core. <Default>: NRF52832_XXAA
Type '?' for selection dialog
Device>NRF52832_XXAA
Please specify target interface:
  J) JTAG (Default)
  S) SWD
  T) cJTAG
TIF>S
Specify target interface speed [kHz]. <Default>: 4000 kHz
Speed>1000
Device "NRF52832_XXAA" selected.


Connecting to target via SWD
InitTarget() start
CTRL-AP indicates that the device is secured.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.

Executing default behavior previously saved in the registry.
Device will be unsecured now.
InitTarget() end - Took 4.12s
Connect failed. Resetting via Reset pin and trying again.
InitTarget() start
CTRL-AP indicates that the device is secured.
For debugger connection the device needs to be unsecured.
Note: Unsecuring will trigger a mass erase of the internal flash.

Executing default behavior previously saved in the registry.
Device will be unsecured now.
InitTarget() end - Took 4.13s

****** Error: J-Link script file function InitTarget() returned with error code -1

Error occurred: Could not connect to the target device.
For troubleshooting steps visit: https://kb.segger.com/J-Link_Troubleshooting
J-Link>

Logs from `nrfutil`:

cbuec@W11nMate:~$ nrfutil device --version
nrfutil-device 2.19.4 (ae7891d 2026-06-30)
commit-hash: ae7891dd1b346c405d104061a4f18a8f4f897635
commit-date: 2026-06-30
host: x86_64-unknown-linux-gnu
build-timestamp: 2026-06-30T13:55:44.140980858Z
classification: nrf-external

Detected SEGGER J-Link version: JLink_V8.10f

The device command version you are currently using was tested with a different J-Link version (JLink_V9.24a) than the one you have installed (JLink_V8.10f). The tested version is not required, and your J-Link version will most likely work fine. If you get issues related to J-Link with your devices, use the tested version.

cbuec@W11nMate:~$ nrfutil device recover
❌ Failed to recover 1050351525, Device error: Access port is still protected after Erase and Reset                                                                                                                                                         Error: One or more recover tasks failed:
 * 1050351525: Device error: Access port is still protected after Erase and Reset (Generic)

Logs from `nrfutil` with Segger J-Link version 9.24a:

cbuec@W11nMate:~/Downloads$ nrfutil device --version
nrfutil-device 2.19.4 (ae7891d 2026-06-30)
commit-hash: ae7891dd1b346c405d104061a4f18a8f4f897635
commit-date: 2026-06-30
host: x86_64-unknown-linux-gnu
build-timestamp: 2026-06-30T13:55:44.140980858Z
classification: nrf-external

Detected SEGGER J-Link version: JLink_V9.24a
cbuec@W11nMate:~/Downloads$ nrfutil device recover
❌ Failed to recover 1050351525, Device error: Access port is still protected after Erase and Reset                                                                                                                                                         Error: One or more recover tasks failed:
 * 1050351525: Device error: Access port is still protected after Erase and Reset (Generic)

Logs from "nRF Connect for Desktop Programmer" version 4.7.5 on Windows:

2026-07-06T12:46:20.312Z INFO Initialising the bundled nrfutil device
2026-07-06T12:46:20.322Z DEBUG Application data folder: C:\Users\cbuec\AppData\Roaming\nrfconnect\pc-nrfconnect-programmer
2026-07-06T12:46:20.356Z DEBUG App pc-nrfconnect-programmer v4.7.5 (official)
2026-07-06T12:46:20.356Z DEBUG App path: C:\Users\cbuec\.nrfconnect-apps\node_modules\pc-nrfconnect-programmer
2026-07-06T12:46:20.356Z DEBUG nRFConnect 5.2.0, required by the app is (>=5.2.0)
2026-07-06T12:46:20.356Z DEBUG nRFConnect path: C:\Users\cbuec\AppData\Local\Programs\nrfconnect\resources\app.asar
2026-07-06T12:46:20.356Z DEBUG HomeDir: C:\Users\cbuec
2026-07-06T12:46:20.356Z DEBUG TmpDir: C:\Users\cbuec\AppData\Local\Temp
2026-07-06T12:46:23.804Z INFO Successfully installed nrfutil core version: 8.1.1
2026-07-06T12:46:27.011Z INFO Successfully installed nrfutil device version: 2.19.2
2026-07-06T12:46:27.126Z INFO Using the bundled core version for nrfutil device: 8.1.1
2026-07-06T12:46:27.243Z INFO Using nrfutil device version: 2.19.2
2026-07-06T12:46:27.243Z INFO Using nrf-device-lib version: 0.22.20
2026-07-06T12:46:27.244Z INFO Using nrf-probe version: 0.58.3
2026-07-06T12:46:27.244Z INFO Using SEGGER J-Link version: JLink_V9.30
2026-07-06T12:46:27.245Z INFO Your version of SEGGER J-Link (9.30) is newer than the one this app was tested with (9.24a). The tested version is not required, and your J-Link version will most likely work fine. If you get issues related to J-Link with your devices, use the tested version.
2026-07-06T12:46:29.800Z INFO Getting serial port options from the persistent store for 001050351525.pc-nrfconnect-programmer
2026-07-06T12:46:29.801Z INFO Device connected with the serial number 001050351525
2026-07-06T12:46:29.818Z INFO Getting serial port options from the persistent store for 001050351525.pc-nrfconnect-programmer
2026-07-06T12:46:34.472Z INFO Selecting device with the serial number 001050351525
2026-07-06T12:46:36.089Z INFO Selected device with the serial number 001050351525
2026-07-06T12:46:36.090Z INFO Using nrfutil device to communicate with target via JLink
2026-07-06T12:46:36.091Z INFO JLink OB firmware version J-Link OB-nRF5340-NordicSemi compiled Jun 11 2026 13:12:28
2026-07-06T12:46:36.091Z INFO Device family NRF52_FAMILY
2026-07-06T12:46:36.091Z INFO Device version 
2026-07-06T12:46:36.091Z INFO Board version PCA10040
2026-07-06T12:46:36.333Z INFO Reading readback protection status for Application core
2026-07-06T12:46:36.333Z INFO Reading readback protection status for Application core 0%
2026-07-06T12:46:36.401Z INFO Reading readback protection status for Application core 50%
2026-07-06T12:46:36.401Z INFO Reading readback protection status for Application core 50%
2026-07-06T12:46:36.420Z INFO Reading readback protection status for Application core 100%
2026-07-06T12:46:36.421Z INFO Application core protection status 'NRFDL_PROTECTION_STATUS_ALL'
2026-07-06T12:46:36.423Z INFO Reading readback protection status for Application core completed
2026-07-06T12:46:36.474Z INFO Skipping reading core Application information as it is protected.
2026-07-06T12:46:37.452Z ERROR Error: Failed with exit code 1.
One or more batch tasks failed:
 * 1050351525: Failed to attach to target: The Application core access port is currently closed. AP-Protect might be enabled (NotAvailableBecauseProtection)


The operation is unavailable for some of the devices because they have readback protection enabled. These devices might be possible to unlock using the `recover` subcommand. See `nrfutil device recover --help` for more information.


Message: Batch task reset failed, Failed to attach to target: The Application core access port is currently closed. AP-Protect might be enabled.
2026-07-06T12:47:11.422Z INFO Recovering Application core
2026-07-06T12:47:11.423Z INFO Recovering Application core 0%
2026-07-06T12:47:11.486Z INFO Recovering Application core 50%
2026-07-06T12:47:11.486Z INFO Recovering Application core 50%
2026-07-06T12:49:12.316Z ERROR Failed "recovering application core". Error: code: 1, description: Generic, message: Batch task recover failed, Device error: Access port is still protected after Erase and Reset

The state is now that we have two boards that are essentially bricked and a third board that seems to flash okay with the new firmware (but I do not want to try to make more logs and brick that too).

Any help in this regard would be much appreciated.

Best Regards,

Chris