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Bootloader upload / fix
If the Arduino Micro Pro isn’t working/detected by your OS anymore, you have to fix the bootloader.
To do this you can use an USBASP device.
Wiring
| Signal | USBASP | Arduino Micro Pro |
| MOSI | 1 | D16 |
| VCC | 2 | VCC |
| RESET | 5 | RST |
| SCK | 7 | D15 |
| MISO | 9 | D14 |
| GND | 10 | GND |
Replace bootloader
- Select the Board “Arduino Leonardo”
- Select the Programmer: “USBasp”
- Click on Burn Bootloader