WD10TMVW-11ZSMS5 spin down 5 times

[CNR]

Hello,
i got a WD10TMVW-11ZSMS5. transfered ROM (U12) to compatiable SATA PCB (771814 - 771820). there is also a U14 chip on the USB PCB, dont know if that's relevant.
The drive spins up for a few seconds then spins down, it does that 5 times and then stops. no clicks, no noises. i confirmed heads are good by transfering them to a compatiable donor drive and they work great.
Could this be corrupted ROM? and if so what can i do?

[northwind]

Did you check if PCB is original?

[CNR]

Did you check if PCB is original?

Thank you for replying,
How do you mean? it's a PCB i took from a different drive that works. the original PCB is USB.

[Maxim_TS]

CNR, try to block SA access in ROM and power the drive. Will it still spin down?

[CNR]

CNR, try to block SA access in ROM and power the drive. Will it still spin down?

Hey Maxim,
I blocked SA access with this procedure just now: https://blog.acelaboratory.com/pc-3000- ... ccess.html
Same spin down 5 times.

[northwind]

Source of the post

Did you check if PCB is original?

Thank you for replying,
How do you mean? it's a PCB i took from a different drive that works. the original PCB is USB.

I meant if you checked if ROM is original.

[CNR]

Source of the post

Did you check if PCB is original?

Thank you for replying,
How do you mean? it's a PCB i took from a different drive that works. the original PCB is USB.

I meant if you checked if ROM is original.

Oh, the drive was in no other shop before according to the client and I didn't see any signs of tempering on the PCB or drive, so I'm assuming it is original. Is there another way to confirm this?

[digitalsupport]

Search for WWN from drive label in ROM will confirm if ROM is native