05-05-2020, 11:14 AM
I have that issue on my second board now. I was very careful and always disconnected the board from the Pi before doing anything. From what I remember I forgot it once last time before I rebooted it and now I have the same error on a second board. I can't tell exactly how it happens. However I HIGHLY RECOMMEND to DISCONNECT THE NRF52 from the Pi BEFORE REBOOT or POWEROFF. From what I can tell it seems that this triggers the error.