nRFConnect for Desktop 3.9.0 still has problem with JLink

[choehyunho]

Hi teams,

I noticed nRFConnect v3.9.0 is released.

After upgrading it, I got different errors as following, while detecting my nRF dongle & PPK during BLE app & Power profiler app.

2021-11-10T04:47:51.051Z ERROR Error while probing devices, more details in the debug log: JLINKARM_DLL_ERROR
2021-11-10T04:47:51.051Z DEBUG "Error when running nrfdl_enumerate"

As it says, I tried to find debug.log, but don't know where to find. Let me know if further problem details required.

I am using two J-Link devices and several nRF52833 DKs on my desktop, and using another BLE vendor's board, too.

I can roll back to 3.6.1, and continue to use nRFConnect, but it is quite inconvenient and hope this problem solved.

Is this problem only for my case? I searched forum but no one reported this isssue yet.

[flundstrom2]

I've had the same issues: The DK doesn't show up in the nRF programmer or any other Nordic tool, but it shows up in the Segger J-Flash tools.

Following the questions asked for your report, this is my setup:

Fredrik.Lundstrom@LINDA-1339 ~
$ nrfjprog --version
nrfjprog version: 10.12.1
JLinkARM.dll version: 6.98e

Fredrik.Lundstrom@LINDA-1339 ~
$ nrfjprog --ids --log
821004208 <== Segger J-Link
683502742 <== nRF52840-DK 
821004209 <== Segger J-Link

Fredrik.Lundstrom@LINDA-1339 ~

Output of log:

2021-12-06T13:20:20.476Z INFO Application data folder: C:\Users\Fredrik.Lundstrom\AppData\Roaming\nrfconnect\pc-nrfconnect-programmer
2021-12-06T13:20:20.739Z DEBUG iface: Ethernet
2021-12-06T13:20:20.739Z DEBUG IP4: 192.168.0.128
2021-12-06T13:20:20.739Z DEBUG IP6: fe80::5176:aee7:54d:d6a9
2021-12-06T13:20:20.739Z DEBUG MAC: a4:bb:6d:5d:a9:47
2021-12-06T13:20:20.740Z DEBUG Client Id: 97c6795bbcacb808847c1b6acc85fde2daf81159
2021-12-06T13:20:20.740Z DEBUG Google Analytics for category pc-nrfconnect-programmer has initialized
2021-12-06T13:20:20.774Z DEBUG App pc-nrfconnect-programmer v2.0.1 official
2021-12-06T13:20:20.775Z DEBUG App path: C:\Users\Fredrik.Lundstrom\.nrfconnect-apps\node_modules\pc-nrfconnect-programmer
2021-12-06T13:20:20.775Z DEBUG nRFConnect 3.9.0, required by the app is (^3.8.0)
2021-12-06T13:20:20.775Z DEBUG nRFConnect path: C:\Users\Fredrik.Lundstrom\AppData\Local\Programs\nrfconnect\resources\app.asar
2021-12-06T13:20:20.775Z DEBUG HomeDir: C:\Users\Fredrik.Lundstrom
2021-12-06T13:20:20.775Z DEBUG TmpDir: C:\Users\FREDRI~1.LUN\AppData\Local\Temp
2021-12-06T13:20:21.409Z ERROR Error while probing devices, more details in the debug log: UNKNOWN_DEVICE
2021-12-06T13:20:21.409Z DEBUG "Error when running nrfdl_enumerate

Following the instructions in https://devzone.nordicsemi.com/f/nordic-q-a/81700/how-to-downgrade-nrf-connect resolved the problem.