How to repair Seagate PCB 100685485

If a Seagate hard disk drive with the PCB board 100685485 inside has the following failure symptoms, you need to replace and repair it in order to recover data on it, this article will show you how to buy a matching donor (replacement) PCB 100685485 and how to replacing it step by step.

Hard Drive PCB Failure Symptoms:

Hard drive can’t spin up (If you hear a tick, or do not hear or feel any movement, the PCB is probably defective);
A burning smell can be sensed coming from the hard drive; Burnt hard drive PCB components (“Motor Control Chip” burnt, “TVS Diodes” burnt, “Main Controller IC” burnt) on the PCB;
The HDD be connected to wrong power supply;
HDD PCB’s interface damaged;

Steps to repair Seagate HDD PCB 100685485

Step 1: Find a donor Seagate PCB 100685485
To buy a matching donor PCB for Seagate HDDs, we need to make sure the “Board Number” on the PCB is the same. Board number is begin with “100*** “. Check the board number on your hard drive, make sure it is “100685485“. (REV A, REV B or REV C are compatible, can be used as the same).

Seagate HDD PCB 100685485

Note: We have listed some models of hard drives which are using the 100685485 PCB on hddzone.com for convenience, but to make sure, you’d better to unscrew your hard disk and have a look on the board.

Step 2: Buy Seagate PCB 100685485 Online

Then search with “100685485” in the search box on HDDZone.com and order it online. HDDZone.com provide worldwide free shipping (7-20 business days), we also provide expedited shipping (3-7 days) such as DHL & UPS.

Search for Seagate HDD PCB 100685485

Step 3: Firmware Transfer on Seagate PCB 100685485
In most cases, you need to transfer the “BIOS” chip (HDD firmware are usually stored in the “BIOS” chip or “Main Controller IC” chip) before you swap hard drive PCB, in order to make the donor board compatible with your HDD.

Seagate HDD PCB 100685485

Step 4: Recover and Backup Data
After the firmware transfer is completed, the Seagate hard drive PCB 100685485 replacement repair process is finished! Connect your HDD to your PC and restart your computer, you will be able to recover data from your HDD now! Backup! Backup! Backup!