Hi,
I have been using the nRF52840 for a long time, and everything was working fine. However, now LED5 starts blinking whenever the USB is connected to J2. I have tried several methods, such as uninstalling and reinstalling J-Link, but the issue persists.
Additionally, when I press the BOOT button and power cycle the board, I do not see any bootloader folder in the file explorer. I have also tried changing the USB cable, but that did not help.
I am not sure what to do next. Please help me resolve this issue.
Thank you.