I have this disk, and the top platter has a scrahtch all around the disk, and the head is gone. Is there a way to isolate/remove this head in ROM or something, so i can recover from the other 5 heads? I have both mrt and pc3k available. I have to mention that the disk spins up, give a few clicks and spins downd and give size 3,86gb. All other info, like ID model etc is correct.

can we see a picture of the top platter?

_________________
Data Recovery Pakistan

Hope this is a test case and not a customer case.
In PC3000 there are ways to disable heads in ROM and get data from ok media.
I would also inspect heads very close under a microscope, maybe you will find more media with same type of damage you see on topmedia.

_________________
Digitalsupport Data Recovery
https://digitalsupport.dk

https://forum.hddguru.com/viewtopic.php?f=28&t=38768

Same case

There were an answers. ID info is ROM details.
BTW. you should check all platters and heads.
No one can predict about this and they can give only rough idea.