I am experiencing an issue with my nRF52840 DK board. When I initially connect the board to my PC via USB, the debugger LED (LED5) blinks briefly but then turns off. Additionally:
1. The J-Link bootloader does not appear when connected to my PC.
2. The board is not listed as a USB device in the Linux system when I run the lsusb command.
3. The four LEDs connected to the controller are dimly blinking, even though no code is being executed on the board.
I have ensured the USB cable is functional and verified it supports data transfer. I have also tried connecting to multiple USB ports and restarting my PC, but the issue persists.
Environment Details:
Development Board: nRF52840 DK
Host System: Linux Lite
Development Environment: nRF Connect SDK v2.7.0 (Zephyr RTOS)
I suspect there might be an issue with the debugger firmware or hardware, but I am unable to diagnose it further.
Thank you for your assistance!
