If you receive this error message A device attached to the system is not functioning, here are a few things you may try. It is quite possible that the attached device is not working for one of these reasons:
- USB or external device is switched off, or connected improperly
- The external device and drive types are incompatible
- The external device is not properly inserted in the drive or connected to the port
- The drive door is open
- The external device is not properly formatted. (MY CASE)
Correct the problem by addressing the above possibilities and try again running your command again.
Nikon D3300 – mine
I got this error for my DSLR Camera Nikon. I guess because the camera formatted my SD Card to format that is only Read only supported and cannot be moved elsewhere.
THAT REALLY SUCKS..