I'm trying to help out a friend. 2.5" SATA HDD went bad and when I install it in a system it is not recognized in the BIOS or in Windows. The drive spins up as normal and there are no sounds that are out of the ordinary. My guess is that the controller board failed. Has anyone here ever tried replacing a controller board on a 2.5" SATA HDD? My plan is to buy the exact same model drive and attempt to swap controller boards. Just wondering how feasible this is. Due to the importance of the data, this is worthwhile even if the chances of sucess are small. I'm also curious if there will be any soldering involved. Thanks!