When connecting the micro:bit, a crying face and the error code 927 were displayed on the LED matrix. I have tried the official firmware (V1, V2), but none of them worked. It still shows 927. I can be sure that my micro:bit is genuine. And my device is normal (there is no hardware damage because I was still using it to run programs three hours ago). What should I do to repair my micro:bit?
Have you tried copying another program to the micro:bit? Here is more information about what the error codes mean - micro:bit error codes : Help & Support