Hi, we have some problems with the nRF54L15DKs. They are bought on Digikey and are labeled with
0.9.1
2024.42
There are 2 issues.
1. The J-Link OB USB-UART stops working.
A few times every day suddenly the USB-UART VCOM stopps sending any data to host computer. I need to close the serial terminal on my computer and re-open it again to see any output from the virtual COM ports. I have tested on both PUTTY, nRF Serial Terminal and an internal tool we have. The issue exists using all of them (NO flow control is used). It points to a FW issue in the J-LINK OB FW as I tried eliminating everything else. Tested on Linux also so I don't think it's a host computer driver issue.
2.Bricked DKs
~5/20 nRF54L15DKs we have seem to have bricked. This happens sometimes by simply plugging in and out the USB-C connector.
When it happens the board is totally dead and no LEDs are present. The LD1 LED that is controlled by the JLink OB Debugger is not lighting up either. I have not spent any time debugging/measureing voltages on the DKs so I just know this. I think the nRF54L15 chip have no power as our FW lights up the LED1when running and LED1 is off.
Are any of those issues known since before at Nordic? Both of them seems quite severe and I'm surprised I can't find any other reports of this issue.
