I purchased the nRF52840-PDK the other day and when it came in today Booted it up and it worked fine. I went to load the example nrf52840_xxaa_side_header.hex from the github page onto the board with the drag and drop installation. After dropping it in, the drive unmounted and mounted again giving me an error that the drive disappeared. I decided to load the latest bootloader firmware on the board which worked fine, after which the device booted up again I was able to try and program the above mentioned hex file. This time after programming the board it is no longer being recognized by windows, or with jlink commander. Power is being supplied to the board but nothing works.
Any ideas on how I might be able to recover it?
