Seagate ST31000521AS Data Recovery

Zero Alpha offers professional data recovery for the Seagate ST31000521AS, a 1TB HDD used in desktops and external enclosures. Users commonly experience issues such as clicking noises, slow detection, or failure after a power event. Whether the drive has firmware problems, bad sectors, or a damaged PCB, our technicians can help. We accept mail in jobs from Australia and worldwide.

Seagate ST31000521AS Common Problems

• Drive clicks or beeps and is not detected
• Slow responding HDD due to bad sectors
• Firmware issues common to Seagate 7200.12 series
• Power surge or damaged PCB
• Corrupted or inaccessible partitions
• Drive not spinning or intermittent spin-up

ST31000521AS Data Recovery Caselog

17NOV25: Customer mailed in this Seagate for data recovery complaining that PCB is dead. PCB: 100579470 REV B. PCB badly burnt at the connector and at the capacitor. Patient rom: 25fu406b 04 0sg1l. Orientation-bottom right is a dot (there is cut off corner). Algorithm to read with the programmer: LE25FU406BTT@MSOP8. Programmed donor pcb. Clicks and spins down. Head vendor.............. : alternative, Preamp type.............. : 0158. Fam ID................... : 0x3A (Muskie).