I have a Seagate barracuda 1Tb SATA disk which has failed after a power surge. If I connect to a computer, the disk will spin up, but it will stop the computer from booting. I think that it is the logic board on the HDD that is fried. I have bought an exact same disk so that I can swap the logic board over. The only difference is the firmware.
If I swap the logic boards over neither disk will work (the disks just click) if I swap them back the replacement drive works just fine.
Do I need to make the firmware the same on the replacement drive as the failed drive or am I barking up the wrong tree and the disk needs to go to a lab for data retrieval?