Somehow it seems the interface MCU of my PCA10040 DK got confused. I cannot use the JLINK to the nRF any more, and the JLINK drive (in Windows 10) does not show up. LD5 stays off when powerting up.
I tried to enter MCU bootloader by pressing IF BOOT/RESET during power up.
- LD5 starts to blink
- For some time (~30 sec) an USB drive shows up in Windows, but is never recognized with a name, waiting wheel spinning, and is not accessible. After some time, it vanishes.
Therefore, I cannot flash the firmware ( I downloaded "J-Link OB-SAM3U128-V2-NordicSemi 170724.bin" as suggested).
Is there an alternative way to flash and revive the Interface MCU firmware?
