Good day. I'm really new to embedded and nRF52840 DK is my first device.
I was trying to figure out the issue, where I could not read from serial port and made something that made board unresponsive.
To be more clear - board was working fine, I was able to flash and debug firmware.
The last things I think I did were:
- plugged USB cable connected to laptop to `nRF USB` port (on the wide side, near RESET button)
- presses RESET button and probably powered on device, I dont remember exactly
Now when I plug USB to J-Linlk port nothing happens - no LEDs blinking or anything.
I've tried some recommendations from here: nRF52 DK boot problem after press IF BOOT/RESET button. In particular, I've tried to plug bourd to J-Ling USB port, holdRESET button and power up board using power switch, but nothing happens.
Is there a way to bring board back to functional state?