WD15NMVW-11AV3S2 2060-771961-001 WD15NMVW 771961 hard drive circuit board + firmware transfer Need BIOS chip swap?:Yes but you need to ship

but you need to ship your board to us

Model : WD10EZRX-00L4HB0

Model : MK2552GSX

most likely it's not board issue

Model : WD15EADS-00R6B0

WD15NMVW-11AV3S2 2060-771961-001 WD15NMVW 771961 hard drive circuit board + firmware transfer Need BIOS chip swap?:Yes but you need to shipHard Drive Circuit Board for Data Recovery This PCB (circuit board, donor board, controller board) is intended for individuals looking to recover data from their hard drive. It includes a fully tested PCB and a complete set of instructions. This item will help you to diagnose if your hard drive has a circuit board problem, and if so, assist you in recovering your valuable data. If your hard drive has a mechanical issue, please consider our Data