2025-07-06T17:52:05.816Z INFO Initialising the bundled nrfutil device
2025-07-06T17:52:05.827Z DEBUG Started watching devices
2025-07-06T17:52:06.421Z INFO Using the bundled core version for nrfutil device: 8.0.0
2025-07-06T17:52:06.511Z INFO Using nrfutil-device version: 2.10.2
2025-07-06T17:52:06.512Z INFO Using nrf-device-lib version: 0.17.71
2025-07-06T17:52:06.512Z INFO Using nrf-probe version: 0.38.0
2025-07-06T17:52:06.512Z INFO Using JLink version: JLink_V8.48
2025-07-06T17:52:06.515Z INFO Your version of SEGGER J-Link (8.48) is newer than the one this app was tested with (8.18). 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.
2025-07-06T17:52:08.812Z DEBUG Selected device: nRF52840 DK
2025-07-06T17:52:08.858Z DEBUG Changed step: Info
2025-07-06T17:52:21.831Z DEBUG Changed step: Rename
2025-07-06T17:52:23.568Z DEBUG Changed step: Info
2025-07-06T17:53:03.477Z DEBUG Changed step: Rename
2025-07-06T17:53:34.489Z DEBUG Changed step: Program
2025-07-06T17:53:42.588Z ERROR [ProbeLib] [2025-07-06 17:53:42.586704Z] {jlink_usb_001050291412} J-Link: Timeout while erasing sectors @0x10001000, RAMCode did not respond in time!
Failed to erase sectors.
2025-07-06T17:54:02.824Z ERROR [ProbeLib] [2025-07-06 17:54:02.823730Z] {jlink_usb_001050291412} J-Link: Timeout while erasing sectors @0x00000000, RAMCode did not respond in time!
Failed to erase sectors.
Timeout while calculating CRC, RAMCode did not respond in time!Timeout while calculating CRC, RAMCode did not respond in time!
2025-07-06T17:54:05.366Z ERROR [ProbeLib] [2025-07-06 17:54:05.365568Z] Worker terminated by signal 9.
2025-07-06T17:54:05.366Z ERROR [ProbeLib] [2025-07-06 17:54:05.365669Z] Error output of terminated worker:
I'm trying to flash the hardware even with Programmer v4.6.0 but i get the following issue 
18:59:55.179 Initialising the bundled nrfutil device
18:59:55.561 Using the bundled core version for nrfutil device: 8.0.0
18:59:55.645 Using nrfutil-device version: 2.10.2
18:59:55.645 Using nrf-device-lib version: 0.17.71
18:59:55.645 Using nrf-probe version: 0.38.0
18:59:55.645 Using JLink version: JLink_V8.48
18:59:55.646 Your version of SEGGER J-Link (8.48) is newer than the one this app was tested with (8.18). 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.
19:02:14.740 Getting serial port options from the persistent store for 001050291412.pc-nrfconnect-programmer
19:02:14.741 Device connected with the serial number 001050291412
19:02:14.788 Getting serial port options from the persistent store for 001050291412.pc-nrfconnect-programmer
19:02:29.358 Selecting device with the serial number 001050291412
19:02:29.709 Selected device with the serial number 001050291412
19:02:29.711 Using nrfutil device to communicate with target via JLink
19:02:29.712 JLink OB firmware version J-Link OB-nRF5340-NordicSemi compiled Apr 1 2025 10:13:35
19:02:29.712 Device family NRF52_FAMILY
19:02:29.713 Device version
19:02:29.713 Board version PCA10056
19:02:30.096 Reading readback protection status for Application core
19:02:30.097 Reading readback protection status for Application core 0%
19:02:30.103 Reading readback protection status for Application core 100%
19:02:30.103 Application core protection status 'NRFDL_PROTECTION_STATUS_ALL'
19:02:30.105 Reading readback protection status for Application core completed
19:02:30.191 Skipping reading core Application information as it is protected.
19:02:30.192 Skipping reading core Application as it is protected.
19:02:30.940 Reading readback protection status for Application core
19:02:30.941 Reading readback protection status for Application core 0%
19:02:30.949 Reading readback protection status for Application core 100%
19:02:30.949 Application core protection status 'NRFDL_PROTECTION_STATUS_ALL'
19:02:30.949 Reading readback protection status for Application core completed
19:02:30.991 Device is loaded and ready for further operation
19:02:57.127 Recovering Application core
19:02:57.128 Recovering Application core 0%
19:03:21.388 Failed "recovering application core". Error: code: 1, description: Generic, message: Batch task recover failed, Timed out waiting for response from worker.
19:03:21.411 Error: Failed with exit code 1. One or more batch tasks failed: * 1050291412: Timed out waiting for response from worker. (Generic). Message: Batch task recover failed, Timed out waiting for response from worker.
19:03:44.978 Reading readback protection status for Application core
19:03:44.979 Reading readback protection status for Application core 0%
19:03:44.981 Reading readback protection status for Application core 100%
19:03:44.981 Application core protection status 'NRFDL_PROTECTION_STATUS_NONE'
19:03:44.981 Reading readback protection status for Application core completed
Another issue:
Visual studio code shows the hardware is flashed but the Hardware is not flashed.
OS : Ububtu
HW : nrf52840
