Hello, I bought electronics for the WD20NMVW disk, the disk is working, the system sees it, but there is no partition, it is not initialized, please help.
When you get this PCB, you need to move your original PCB’s BIOS(U12 chip) to the replacement PCB.
You can move the BIOS from your original PCB by using hot-air gun, then solder it on the replacement board. Please refer: hard drive pcb firmware transfer. Or you can find an electronics repair shop help you.
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Note: Send clear photos of your PCB (both sides) by attachments will make everything easier!