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.

[BloPoPs]

Before upgrading to the last version of JLink, I had the JLink version 6.54 (so, way below 7.20a) and was having the problem... Apparently you have to be lucky to have the correct JLink version

[Jared]

Hi,

Could you try downgrading the JLink driver to 6.88a or 7.20a? 

regards

Jared 

[choehyunho]

Sorry, it's hard.

Both 6.88a and 7.20a is 32bit edition, and lots of my dev tools are linked to C:\Program Files\JLink, not C:\Program Files (x86)\JLink.

I hope other person who interested in this issue, and easily available for downgrade may test this combination. i.e. nRFConnect for Desktop v3.9.0 + JLink 6.88a/7.20a.

[Jared]

Seems like Laoky has already confirmed that this should work:

Laoky said:

So after downgrading following this post, it works again perfectly with my DK (i downgraded to v3.7.1).

[choehyunho]

I noticed 3.9.1 has been released, and release note says that something has been modified about this issue, but no changes.

Still my nRF devices are not correctly detected, even if I updated nRF command-line tools, too.