Start with a schematic which you should be able to get from Adafruit. It is mostly SMD, hopefully you are equipped and experienced enough to change the parts. Please explain: the 5V pin will still fry whenever external power is connected indicates.
Start with a schematic which you should be able to get from Adafruit. It is mostly SMD, hopefully you are equipped and experienced enough to change the parts. Please explain: the 5V pin will still fry whenever external power is connected indicates.