After a recent power supply failure my 2TB Seagate drive no longer powers on.
The board (attached) is a 100815595 Rev D. Your sales page mentions swapping the BIOS chip, presume this is the WINBOND chip located at the top right of your first image?
https://www.hddzone.com/seagate-pcb-100815595-rev-d-p-3488.html
Is it required to swap the BIOS chip for this board?
Many thanks for your help
The PCB’s BIOS need to be changed. You can move the BIOS from your original PCB by using hot-air gun, then solder it on the replacement board. Please refer: https://www.hddzone.com/hard_drive_pcb_firmware_transfer.html Or you can find an electronics repair shop help you.
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