Error when fetching device versions: readFwInfo error

[pisquo]

Hi I've just started developing with the nrf52840 and Ive been following the official documentation on how to use the programmer shipped with nRF Connect.

Unfortunately when I select the device in the respective menu I get the following error and I'm not able to do anythin on the soc.

Error when fetching device versions: readFwInfo error

I'm currently using Linux with nrf connect 3.80 and jlink 6.88a (I've tried with nRF Connect 3.9 but I had the exact same issue).

Has anyone managed to solve this problem?

[Simonr]

Sorry, this case has gone on for so long I was sure I had referred to Verbose logging already. You can enable this by going to about, flick the Verbose logging button on, then Restart with Verbose logging. 

That way we should get more information on what's going on when you choose your device. The nrfjprog and JLink versions look to be correct.

Best regards,

Simon

[petermeter]

I have just plugged in the the same NRF52840 dongle as with my previous posts, with which I was getting the below error message. Interestingly enough, this time the very same dongle showed up as "nRF52 Connectivity" as opposed to earlier "Open DFU Bootloader". Then I went to enabling verbose logging, and suddenly I could successfully connect to the device and the device memory layout was displayed. Since I didnt do anything to the device, I suspect my development machine which is massively used for programming different devices must have caused the problem. Although the problem is solved, below I am attaching the verbose log, maybe that is of any value to you:

15:55:49.784

Target device closed

15:59:29.269

Using @nordicsemiconductor/nrf-device-lib-js to communicate with target via USB SDFU protocol

15:59:29.348

[nrfdl][info](15:59:29.270) Loaded plugin C:\Users\peter\AppData\Local\Programs\nrfconnect\resources\app.asar.unpacked\node_modules\@nordicsemiconductor\nrf-device-lib-js\Release\nrfdl-sdfu-plugin.nrfdl, starting to resolve symbols

15:59:30.304

[nrfdl][error](15:59:30.301) [sdfu] Error when trying to open port=\\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} at try 1. Exception=open: Access is denied.. Retrying...

15:59:30.474

[nrfdl][error](15:59:30.474) [sdfu] Error when trying to open port=\\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} at try 1. Exception=open: Access is denied.. Retrying...

15:59:30.579

[nrfdl][info](15:59:30.564) [sdfu] Successfully opened \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73}. Baud rate: 115200. Flow control: none. Parity: none

15:59:30.613

[nrfdl][error](15:59:30.614) [sdfu] Error when trying to open port=\\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} at try 2. Exception=open: Access is denied.. Retrying...

15:59:30.632

[nrfdl][info](15:59:30.633) [sdfu] serial port \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} closed.

15:59:30.632

[nrfdl][info](15:59:30.633) close plugin dll at path: C:\Users\peter\AppData\Local\Programs\nrfconnect\resources\app.asar.unpacked\node_modules\@nordicsemiconductor\nrf-device-lib-js\Release\nrfdl-sdfu-plugin.nrfdl

15:59:30.641

Update files regions according to Application core

15:59:30.641

Parse memory regions for file

15:59:30.928

[nrfdl][error](15:59:30.925) [sdfu] Error when trying to open port=\\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} at try 3. Exception=open: Access is denied.. Retrying...

15:59:31.076

[nrfdl][info](15:59:31.077) [sdfu] Successfully opened \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73}. Baud rate: 115200. Flow control: none. Parity: none

15:59:31.091

[nrfdl][info](15:59:31.085) [sdfu] serial port \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} closed.

15:59:31.443

[nrfdl][info](15:59:31.443) [sdfu] Successfully opened \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73}. Baud rate: 115200. Flow control: none. Parity: none

15:59:31.449

[nrfdl][info](15:59:31.449) [sdfu] serial port \\?\USB#VID_1915&PID_521F&MI_00#7&136D5ABD&1&0000#{86e0d1e0-8089-11d0-9ce4-08003e301f73} closed.

Thank you for your kind help solving this issue!

Regards

Peter