nrf Connect for Desktop v3.9.3 not detecting device

[flodis]

I have an early nrf52840-Preview-DK device that has worked fine before.

When the project is revisited the board is no longer detected in any of the programs in nrf Connect for Desktop v3.9.3.

I have flashed the Interface MCU firmware binary J-Link OB-SAM3U128-V2-NordicSemi 170724.bin from https://www.nordicsemi.com/Products/Development-hardware/nrf52840-dk/download#infotabs

The nrf52840 loads binaries using the Segger J-Link drive and works ok.

The device is found using the nrf Command Line nrfjprog.exe -i and reports number 683920827, same as on the device MPU printed label.

I guess the nrf Connect no longer supports windows 7, but stated in the documentations for the programmer - https://infocenter.nordicsemi.com/pdf/nRF_Connect_Programmer_User_Guide_v1.0.pdf


Have tested in both 64 and 32-bit environments with device not detected.

The device also exposes a serial port so it seems the nrf Connect is not as able as it where in earlier versions.

What to do next?
 

[flodis]

The log of any app started in nrf Connect indicates no error but does not contain any sign of serial port activity

2022-01-24T20:20:05.327Z INFO Application data folder: C:\Users\user1\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2022-01-24T20:20:05.461Z DEBUG App pc-nrfconnect-linkmonitor v2.0.0 official
2022-01-24T20:20:05.462Z DEBUG App path: C:\Users\user1\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2022-01-24T20:20:05.462Z DEBUG nRFConnect 3.9.3, required by the app is (^3.8.0)
2022-01-24T20:20:05.462Z DEBUG nRFConnect path: C:\Users\user1\AppData\Local\Programs\nrfconnect\resources\app.asar
2022-01-24T20:20:05.463Z DEBUG HomeDir: C:\Users\user1
2022-01-24T20:20:05.463Z DEBUG TmpDir: C:\Users\user1\AppData\Local\Temp

Older logs from 2019 show serial port activity and success:

2019-04-27T09:38:18.934Z INFO Application data folder: C:\Users\user1\AppData\Roaming\nrfconnect\pc-nrfconnect-ble
2019-04-27T09:38:19.105Z DEBUG App pc-nrfconnect-ble v2.2.1 official
2019-04-27T09:38:19.106Z DEBUG App path: C:\Users\user1\.nrfconnect-apps\node_modules\pc-nrfconnect-ble
2019-04-27T09:38:19.106Z DEBUG nRFConnect 2.6.2 is supported by the app (^2.4.0)
2019-04-27T09:38:19.106Z DEBUG nRFConnect path: C:\Users\user1\AppData\Local\Programs\nrfconnect\resources\app.asar
2019-04-27T09:38:19.106Z DEBUG HomeDir: C:\Users\user1
2019-04-27T09:38:19.106Z DEBUG TmpDir: C:\Users\user1\AppData\Local\Temp
2019-04-27T09:38:19.121Z VERBOSE Could not fetch serial number for serial port at COM35
2019-04-27T09:38:19.122Z VERBOSE Could not fetch serial number for serial port at COM45
2019-04-27T09:38:19.122Z VERBOSE Could not fetch serial number for serial port at COM47
2019-04-27T09:38:24.531Z INFO Validating connectivity firmware for device with serial number 000683920827...
2019-04-27T09:38:34.565Z INFO Connectivity firmware is valid.
2019-04-27T09:38:34.566Z INFO Getting information from J-Link debugger...
2019-04-27T09:38:36.096Z INFO Found device type: nRF52840. J-Link firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 12 2018 11:44:41.
2019-04-27T09:38:36.097Z INFO Connectivity firmware version: 1.2.3. SoftDevice API version: 3. Baud rate: 1000000.
2019-04-27T09:38:36.098Z INFO Opening adapter connected to COM43
2019-04-27T09:38:36.632Z INFO Reset performed on adapter COM43
2019-04-27T09:38:36.633Z INFO Successfully opened COM43. Baud rate: 1000000. Flow control: none. Parity: none.
..