Hi, I have some problem with this disk. Motor starts but disk is clicking about 8 times and motor stops. Correct me if I'm wrong, but i suspect problem with electronic. Disk is seen in mhdd with 0LBA size. Terminal is not locked, and when I type U command it refers spinup error... What details should be the same on donnor disk?

Best Regards
Pawel

Firmware corruption. Search for seagate 7200.11 0lba solution.

_________________
Zero Alpha: zeroalpha.com.au
Find Cheap Donor Drives App: https://www.zeroalpha.com.au/donor-drive-app Updated February 2026

are U sure?
for me it seems head/preamp (PCB 5%) related...



What do u want to do with it?

pepe

_________________
Adatmentés - Data recovery

It's a disk of my close friend. He ask his employee to try to fix it. I suspect he smashed pcb (smooth ic) when he tries to unlock terminal - PCB is very hot. All I want to do is swap pcb resolder rom and check if I get the data or access to service area. One thing I'm afraid is that damaged preamp can destroy the donnor pcb, can I check if there is short-circuit using standard digital multimeter, or not?

more or less. U can check at least wether power lines are OK or shorted.

_________________
Adatmentés - Data recovery

I've almost the same problem. HDD motor does not start an clicking. smooth chip's all pins are short circuit. I'm looking for a smooth chip to change it. The chip is 100369972.

how is that possible?

_________________
www.datarecoveryne.com

I mean it makes noise like beep per second. Motor does not spin up...

Oh, sounds like your spindle is stuck.

_________________
www.datarecoveryne.com

a diode on 12v line was s/c. I changed with the new one then I measured the motor voltages..of course I measured nothing. All of the pins of smooth chip are now s/c. I need a new SMOOTH 100369972 to change it. Anyone help me ?

And you want to change the combo IC ? The whole PCB is fried, you better try with new one and do what you have to do with PCB change....

I dont know all the chips ok or not. And The whole PCB is not fried. As I said before All of the pins of smooth chip are s/c..

OK. good luck then.