What could I try if my J-Link Update failed and do not showup to PC?

[Alan-Ni]

Hi all,

I'm working with building/programming v3.1.1 SLM application for my nRF-9151, it all goes well while testing with nRF-9151DK.

But when I want to try my custom board, I connect my J-Link to PC, started "nRF Connect for PC"(v5.3.1), the program told me to update my J-Link version so I agreed.

Then I went back to VScode IDE, notice there's a warning symbol pop up beside the J-Link showed in "CONNECTED DEVICE", saying "Update Debug Probe Firmware", I also pressed that upgrade.

But after a few second, the J-Link device disappear from the "CONNECTED DEVICE", also not showed in PC's device manager anymore(no unknown device either).

I tried to plug it to other USB ports replace the USB cable, or tried it on my co-worker's PC's USB port, didn't show up as well. Also the LED on the J-link didn't lit up anymore.

So I guess there might be problem that interrupt the firmware update to the J-Link and made it fail.

Are there any method to bring it back to work?

My PC is windows 11, and this is the J-Link I'm using. Heard that this is about 3~4 years old, not really sure what HW version it is but I didn't find it on Segger debug probe product website.

[Vidar Berg]

Hi,

That is unfortunate. The update is something that is handled by the jlink driver and not the nRF Connect program itself. Please try to update again through the J-link Configuration app to see if that may work. This app should already have been installed with your J-Link drivers under "Program Files/SEGGER". If the probe is not showing up or fails to update in this app as well, please reach out to SEGGER, as they are in a better position to assist with this.

Best regards,

Vidar