Hi all. I'm having a lot of hard tine with this drives, specially with the samsungs, Is there some guide/manual, on how to interact with those things?

Convert all to a SATA interface and you can work more safely with more stability and more options as to what you can do for repair / recovery.

For the WD you would also have to take into account the encryption it uses

Thanks for the answer!

Regarding the sata conversion : i mastered it in the WD drives, but still not sure about the samsungs - what parameters should i look for when looking for sata PCB?

Regarding the encryption : in most of the cases, this is what i do : after copying the WD USB disk with sata PCB on it, and receiving an encrypted copy, i connect it to one of many "MYBOOK" cases that i have. I most of the cases, one of them will be able to decrypt the information.

For samsung, drop the 'X' and replace with 'I'/'J' and you have SATA equivalent

If it has external ROM you can swap it over, if not you need to hotswap it and adapt it to work.

There is no problems with encryption on Samsung USB drives