The hard drive cannot spin up. What could be the problem?

Question

Iron

Some kind of incomprehensible magic happens to him in general, he periodically starts up, starts working, I even throw files on him, and then, after some time, he responds to the next connection with a click and you can hear how the disk starts spinning inside, and he clicks again, and the disk loses speed. And then it tries to spin up again, but again it clicks and again it stops. The indicator flashes constantly. After some time, he still manages to start, but this is again until the next trouble.

Answer 1

If it clicks, it's not magic, but a dying hard. Merge urgently all the information and buy a replacement

Answer 2

Maybe he's not getting enough food. Maybe a broken loop. Maybe there is a problem with the heads, or with the controller.
Most likely you will have to run some tests to find out the cause. But first of all - everything important in the backup.

Answer 3

Remove the control board from the hard drive and clean the motor contacts and the contacts going to the head with an eraser, then wipe with alcohol, and see the result