It might be broken, and you have to buy a new one.
If you have a programmer, you could try the ICSP header (6 pins (2x3) on the board), but that won't help a lot, because I think it is broken.
It might be broken, and you have to buy a new one.
If you have a programmer, you could try the ICSP header (6 pins (2x3) on the board), but that won't help a lot, because I think it is broken.