Arduino mega 2560 doesn't show up as a port or other device

Development Tools IDE 1.x
1

I've got an arduino mega 2560 that doesn't show up when i connect it through a known good usb cable that works with an arduino uno.

General info:

  • nothing happens in the loopback test as the usb doesn't show up in ports or other devices

  • i was able to upload the blink sketch through icsp pins with an uno

  • tested the onboard regulator

A friend gave this this mega and according to him this mega was working before he stored it in a box for 2 months.

2

Does the power light come on?

3

Yes, it turns on.

4

Hi @walidhb

Make sure the USB cable is completely plugged into both the Arduino board and the PC.

The USB cable not being fully inserted into the USB socket can result in the power connections being made (and thus LEDs lit on the board), but no data connections (and thus no port for the board).

Are you referring to Windows Device Manager?

5

Try to blow away the dust in USB socket of mega. Did you check if the code is getting uploaded by manually selecting the board and port? If that works no need to worry right.

6

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