WD800BB-00JHC0 - after PCB replaced, clicking noise

[DataStudio]

Hello friends,

I've got:
WD800BB-00JHC0
Date: 08 OCT 2006
DCM: HSCANTJCA

After I recieved the HDD above it was completely dead, after inspecting the electronics I noticed that a few chips on PCB had burned out.
I decided to replace the PCB. The donor was PCB from:
WD1600JB-00REA0
Date: 16 NOV 2006
DCM: HSBHNT2CA

The only thing I made was desoldering the U12 chip (ROM) from original PCB (00JHC0) and solder it in donor PCB (00REA0)

I connected the HDD to PC3000 UDMA + DE and powered on, the clicking noise was heared for about 2-3 seconds and later the disk wasn't clicking, the DRD and DSC icons on the bottom appeared, so I thought it's perfect, but after I run Universal Utility, some error appeared, PC3K has recognized wrong capacity of 37,28GB instead of 80GB.



Please tell me what should I do next ?

By the way, I also found the information that the R120 electronic module could be damaged on original PCB, if so, the head stack probably could be damaged.
Please tell me according to the screen above, do You think that still I need to replace the head stack, or it is not necessary ?

I also don't know what does the red ERR and ABR icon mean ?
Waiting for Your help and thank You in advance for any advice.

[Balvan]

Most likely this drive has two heads.

The error you are getting means that heads were not read properly and translator did not work either.

1. Try turning on either head 0 or 1 and see if you can get a good passport. If you can get a good passport on one head but not the other, one head is bad.

2. Find a good donor and try to do hot swap. If you can successfully do hot swap (drive does not click after recalibration), try to save resources.

3. If you can't get good passport on either head and hot swap clicks, heads are probably bad

I assume the board you used as a donor was a known good PCB before you did the ROM transplant.

- Balvan