Stuck stepper. Bet it was a Seagate ST225 or similar. The bearing grease would harden, especially if left not running for a while. The solution is to use you

Stuck stepper. Bet it was a Seagate ST225 or similar. The bearing grease would harden, especially if left not running for a while. The solution is to use your pinky finger on the stepper motor spindle and twist. As long as you felt the stepper move from home, you’re good, you’re not stuck anymore. I had a Seagate I had to “twist” start every time it powered up, not often as it ran 24/7. You can do it with the drive in the machine as long as you can reach the stepper. I’m writing this not so much for you but for the archivists thousands of years from now. Hope you get those Seagates started folks! ;)