PCB failures (Such as Toshiba PCB G0034A) affect thousands of hard drives every year and often result in permanent data loss. A hard drive may suddenly fail to power on, and a computer may not detect that it is plugged in. Some failed hard drives will also show up in computer BIOS with incorrect brand/model information. PCB failures can also cause physical issues such as read/write head failures, and many PCB failure symptoms overlap with the symptoms of other physical hard drive issues.

Some emails from customers of Toshiba PCB G0034A failures are listed below, along with tips for replacing & repairing.

Toshiba PCB G0034A Failures:

Q: Toshiba USB Compatible SATA HDD

Hi Guys, I got the following USB Toshiba 2.5″ drive:. MQ04UBF100. AZA AB21/JU002U. DATE: 28SEP2018 so relatively new drive.. USB PCB Number: G0034A Does anybody know what is the compatible SATA drive or SATA PCB version? Thanks

Replacement Toshiba PCB G0034A:

To repair a failure board, the simple way is swapping the failure board with a replacement board. Donor boards on HardDriveParts.com are listed below:

• Toshiba MQ04UBB400 PCB Board G0034A
• Toshiba MQ04UBD200 PCB Board G0034A
• Toshiba PCB Board G0034A