Damaged HDD PCB symptoms:
1. The burned mark on the PCB or the pad.
2. The PCB chip is burning hot.
3. The PCB has no warm feeling.
4. The HDD can’t spin (has no power sign).
Swapping PCB is the cheapest way to check if it is the hard driver problem or the PCB problem.
HDDZone.com provides all kinds of hard drive PCB boards. Free shipping worldwide!
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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!