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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.

  • 0 in reply to Jared

    Hi, 

    I have the same problem with 2 different computers. I tried to update Segger Jlink to the last version but nothing has changed.

    I found something that might help you understand what's going on : 

    I have 2 nRF devices connected : the PCA10059 (nRF52840-dongle) and the PCA10040 (nRF52 EVK).

    If I start the Programmer with only the PCA10059 plugged in, the device list is shown correctly. I can unplug and plug the PCA10059 and it disappears/appears dynamically correctly. Then, if I plug in the PCA10040, nothing appears. And if I restart the Programmer with the PCA10040 plugged in, I have the error (and an empty device list).

  • 0 in reply to BloPoPs

    Seems different in my case.

    I removed all my DKs, whether nRF or others, and JLinks, but PPK2 and PCA10059 dongle is not listed with nrfjprog command.

    But Power profiler app now detects PPK2, and BLE app also detects nRF52840 dongle properly.

    Unfortunately, after I connected nRF52833 DK, these apps no longer detect PPK2 and dongle, even after disconnect 52833 DK, and for a few minutes after disconnecting DK, suddenly apps detect PPK2 and dongle properly again.

    And in this status, if I connect 52833 DK again, the following error popup appears.

  • 0

    I am encountering also similar issue. Since update to 3.8.0 and nRF programmer v2.0.0, i get an error with listing devices (it was an "observer/json" thing in v3.8.0, now i get the "Error while probing devices, more details in the debug log: JLINKARM_DLL_ERROR". In both cases it prevents me from getting my DK showing in the list of connected devices.

    With/without usb hub does not change the behaviour. The issue happened immediately after updating to v2.0.0 and v3.8.0 for nRF programmer and nrf Connect respectively.

    I am downgrading to previous version. Will let you know if the problem disappears.

    [EDIT] By the way, the Bluetooth Low Energy was also not discovering devices, like the nrf52 USB dongle. The devices list was also empty. Had to downgrade it as well.

  • 0 in reply to Laoky

    So after downgrading following this post, it works again perfectly with my DK (i downgraded to v3.7.1). Please Nordic, do something to fix your app ! You can contact me if you need more info.

  • 0 in reply to Jared

    I have read https://devzone.nordicsemi.com/f/nordic-q-a/81690/nrf-connect-not-showing-dev-kits-j-links.

    My JLink version is v7.58, the latest, but hegitate to downgrade because almost every JLink software upgrades also update JLink internal firmware.

    Is there any news about fixing problem about JLink?

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