Citation :
Seagate
.
PCB Requirements for Barracuda HDD Architecture. Note: There is no need for chip transfer or firmware reprogramming. Simple PCB swap is enough to fix the hard drive.
(U Series X (U5, U7), 5400.1 (C1, C2), Barracuda I/II/II/IV/V, Barracuda 7200.7/7200.8/7200.9/7200.10, ES, Momentus 4200.2/5400.3/5400.4/7200.1/7200.2).
1. Full Model Number. Example: ST9640320AS, ST31000528AS
2. Firmware. Example: 3.CDA, 9.01, 8.05
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