www.deadharddrive.com

I think so.

Atola is not perfect to work with system area. May be drive can't read some system moduls and can not initialize. You need check system area for reading errors.

I swapped both chips to the donor PCB but still could not pass the PCB diags on the Atola. I tried several other things but in the end, it was not a successful recovery.
when you moved chips did dri ...

try to open drives in R-studio. It knows many file systems and should help in your case

what kind of external box you used for those drives? may be that box used linux file system or kind of raid?

just remove that burned thing.
If you wonna change board, you need put chips called U5 and U7 to new board.

i have board. But usually boards are very strong on this model. Are you sure problem in pcb?

one chip is rom, another is nv-ram. You need move both to donor pcb.

one chip is rom, another is nv-ram. You need move both to donor pcb.

i have pcb for this model.

Seagate Data Recovery

YAR51HWO - version of firmware

Try a different cable on your drive and try to unplug it to see if it will fix your problem. Might have to do this couple of times.
If it won't work, look for an experienced data recovery person. At ...

never use any recovery program with your original drive, except for making copy of your drive.

It's look like file system problems. In this case you need make copy of your drive by special ptogram which can copy disk sector by sector. You can use R-studio, winhex, GetDataBack. All those progra ...