ST4000DM001-1FK17N HDD Partial Sector Access Data Recovery Steps

This is one remote support data recovery case of ST4000DM001-1FK17N patient hdd with partial sector access firmware issue and we have fixed it perfectly with DFL seagate firmware repair tool for a Brazil user today.

HDD ID

Model number: ST4000DM001-1FK17N Serial number: W4J1P31J Firmware: CC49 Capacity: 4TB

Heads: 7 Family: Crawfrod (Family ID:79)

Issue/Symptom

Firmware got locked
Once power up the drive, Dither and other errors information keep reporting under COM terminal.
Work very unstable, it takes a long time to get ready.
Partial access
Most data is not allowed for access.

Data Recovery Steps from this patient ST4000DM001-1FK17N HDD

Dolphin Data Lab engineer performed the following steps:

Power on the drive, waiting until the error message under terminal get stopped, then go to F3 T>.
Unlock the drive

(Regarding the detailed steps and tips about the unlock steps, pls refer to our previous case study)

https://www.dolphindatalab.com/seagate-st2000lm007-rosewood-unlock-steps-and-data-recovery/

After unlock, back up the most important sys modules (including 1B, 28 and 35 module)
Check NG list and clear it.
Initialize ID
Clear G list and regenerate translator.

Scan the drive: the whole drive can be scanned smoothly under DFL Seagate repair program.

Any question is welcome to email to [email protected] or add Dolphin Skype ID: dolphin.data.lab.