I have a 1Tb white drive - I see quite a few messages about these. It is about 2 years old, and I can’t complain about it in any way. But now, when I connect to the power adapter, or otherwise try to power it up, it spins for a while and then shuts down again. I have copied files to it as recently as three days ago, with no problems.
Does this sound lie a power-supply issue, or something more serious?