Seagate ST4000DM001 Data Recovery

Zero Alpha offers professional data recovery for ST4000DM001. The ST4000DM001 is a Seagate 4TB hard drive that can suffer from failed heads, bad sectors, firmware problems, PCB faults, or drives that no longer spin or detect correctly. These failures can make the drive unreadable, slow, clicking, or invisible to the computer. We accept mail in jobs from Australia and worldwide.

Seagate ST4000DM001 Common Problems

  • Drive clicks or repeatedly spins down.
  • Drive powers on but is not detected by the computer.
  • Bad sectors causing slow access, freezing, or read errors.
  • Firmware issues preventing normal detection.
  • Failed read/write heads.
  • PCB damage or no power to the drive.
  • Motor or spindle problems preventing the platters from spinning correctly.
  • Corrupted file system after the drive becomes unstable.

ST4000DM001-1FK17N Damaged Translator Case Log

This is a Crawford family drive. It spins up and stays busy, printing No HOST FIS-ReadyStatusFlags 0002A1A1 to the terminal. This means the translator was not loaded.

System files can be read via terminal (increasing the baud rate is recommended). Reading translator/MCMT fails partway through with DiagError 0000000E. These modules can be read one sector at a time, which is significantly lower, but works.

Copy 0 of the translator had two bad sectors, these were recovered from copy 1 (which also had bad sectors, but at different offsets). Wrote the repaired translator back to the drive (after verifying that heads can write in SA).

Copy 0 of the MCMT had bad sectors, while copy 1 could not be read at all. Cleared MCMT with C>U10 and imported extents from the original damaged copy 0.

SMP was modified to disable problematic features.

After repair of translator and MCMT, drive had same No HOST FIS-ReadyStatusFlags 0002A1A1 issue. Using Ctrl+X command, we see a read error at SA LBA 0x127AA which corresponds to copy 0 of system file FC37E132. Reading this system file via terminal (one sector at a time) reveals a bad first sector. This region was zero-filled (since this part of copy 1 was also unreadable) and written back to the drive.

After fixing system file 132 and rebooting the drive, there is a lot of terminal output. The drive comes ready with full access to the data area, allowing the 3.7TB of customer data to be imaged at full speed.