Hello guys, good day. I"m sorry for asking such a beginner question, but I'm stuck on a drive that doesn't allow me to access User Area, even with access to everything else.
Drive had servo burnt. I did a head swap (as I do daily basis), and changed PCB too (fearing 5V diode could explode on original PCB), with ROM chip transference.
Drive gets ready with new set of heads, doesn't click, IDs perfectly and it is able to read and write modules. Made a backup and made a "slow issue solution".
Still heads are unable to pass head test.

Technology mode key : ..........................: OK

RAM:
Read HDD Info : ................................: OK
Heads number : .................................: 2
Head map : .....................................: 0
SA Cyl Count : .................................: 256
Serials Mark : .................................: 0xFE16
Control version : ..............................: 5520

Zone allocation table : ........................: OK
SA SPT : .......................................: 1578

ROM:
Read Rom Infos : ...............................: OK
ROM Data Size : ................................: 256 Kb
ROM version : ..................................: 05.6JH
ROM generation : ...............................: 05.6KH
Link table version : ...........................: 00.0A
ROM Firmware version : .........................: 0005006J

ROM Modules:
Flash ROM dir reading : ........................: OK
Switched off heads : ...........................: Yes
Heads number : .................................: 0x2
Heads number in use : ..........................: 0x2
heads map : ....................................: 0,1

Load SA translator : ...........................: OK

SA Module Dir Loading...
Load SA Module dir : ...........................: OK
Configuration reading : ........................: OK
Master Password : ..............................: has not been set
User Password : ................................: has not been set


Head Test...
Head: 0 Write data : ..........................: OK
There is an error in reading tracks:
Read Track error C/H/S: -2/0/1
Head: 0 Read data : ...........................: ERR
Head: 1 Write data : ..........................: OK
There is an error in reading tracks:
Read Track error C/H/S: -2/1/1
Head: 1 Read data : ...........................: ERR

Heads are working flawless on donor drive. Don't understand at all. If you guys please forgive my lack of experience and clear me out how should I get access to user area, I'll be really grateful. Thank you in advance.

Do you have access to user data, regardless of the head test issue?

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

Not even a single sector of User Area

What error do you get?
Have you tried changing the head map in RAM to read from just one head at a time?

_________________
HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

I've tried and tested using "user sector viewer", then I realize that this would be better to test in Data Explorer. Head 1 is reading, but really slow. And head 0 isn't reading at all.
Maybe I should search for other head set. Thank you for your answering.