Mega won't show up in device manager

Development Tools IDE 1.x
3

Hello Jorda713,

Thank you for sharing your issue with Arduino community.

I would advise to check the following:

  1. Try a new USB cable making sure it is a DATA USB one and 2.0 port type..
  2. Connect the board to a different computer and check if it has the same behavior.
  3. Install/Update the corresponding core 'Arduino AVR Boards' from Tools > Board > Boards Manager
  4. Update the drivers on the computer if using windows by following these instructions:
    https://www.arduino.cc/en/Guide/DriverInstallation
  5. Burn the bootloader using an additional Arduino board as a programmer. You can find the instructions for this procedure here.
    https://www.arduino.cc/en/Tutorial/ArduinoISP (mod edit)

I hope this is useful!

Regards