Please check whether you can provide the Donor drive and SATA PCB for given model. This is for Head – Swapping, Please confirm it is possible with what you have.
https://www.hddzone.com/toshiba-pcb-g4311a-p-3477.html is the SATA donor PCB.
When you get this PCB, you need to move your original PCB’s BIOS to the replacement PCB. The 8pins (4 pins on each sides) with 25P05VP、25P10VP、25F512、25F1024、25F1024AN、SST25VF512、SST25VF010, etc. are the BIOS.
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Useful Guide: Hard Drive PCB Replacement
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Note: Send clear photos of your PCB (both sides) by attachments will make everything easier!