Case Study 76 Model : ST1000DM003-1ER162

Seagate ST1000DM003-1ER162 Head Failure – 99% Data Recovery Case Study

P- Model : ST1000DM003-1ER162
Serial : Z4Y1RZMG
Firmware : CC43
Capacity : 1 000 GB (1 953 525 168)

PreampType: D0 67
Servo FW Rev: B64C

HEAD 0 WEEK

DONER

Case Summary

A customer brought a Seagate 1TB desktop hard disk to Ram Infotech Data Recovery after the drive stopped working correctly and important data became inaccessible.

Hard Disk Model: Seagate ST1000DM003-1ER162
Capacity: 1TB
Problem: Read/Write Head Failure
Failed Component: Head 0 – Weak
Recovery Method: Head Replacement
Final Result: 99% Data Recovered Successfully

Initial Hard Drive Condition

The Seagate ST1000DM003-1ER162 hard drive was detected with serious read instability. During diagnosis, our data recovery engineers identified that Head 0 was weak and unable to read the platter surface reliably.

A weak or damaged head can cause problems such as:

Hard disk becoming very slow
Drive freezing while accessing files
Bad sectors increasing continuously
Files and folders becoming inaccessible
Hard disk disconnecting during reading
Clicking or abnormal hard drive behaviour
Complete data access failure

Continuing to power on or scan a hard drive with a weak head can increase the risk of platter damage and permanent data loss.

Professional Diagnosis

Our engineers performed a controlled diagnosis of the drive and confirmed that the problem was related to the read/write head assembly.

The original head assembly was not stable enough to safely read all required sectors.

Because important customer data had to be recovered, normal software recovery was not suitable for this case.

Head Replacement Process

A compatible donor hard disk was selected by matching the required technical parameters.

The damaged read/write head assembly was carefully removed and replaced with a compatible donor head assembly under controlled data recovery conditions.

After the head replacement, the drive was tested again for stability.

The replacement head successfully allowed access to the required platter surfaces.

Disk Imaging and Data Extraction

After confirming stable operation, the hard drive was connected to professional data recovery equipment.

Instead of directly copying files from the damaged disk, a sector-by-sector image was created.

Priority was given to readable sectors and important data areas.

Problematic sectors were handled using controlled read settings to reduce unnecessary stress on the recovered hard drive.

After completing the imaging process, the recovered image was analyzed and the customer's files were extracted.

Recovery Result – 99% Successful

The recovery process was completed successfully with approximately 99% of the customer data recovered.

The recovered data was checked for file accessibility and folder structure before final delivery.

Final Case Details

Brand: Seagate
Model: ST1000DM003-1ER162
Capacity: 1TB
Failure: Head 0 Weak
Repair Procedure: Read/Write Head Replacement
Recovery Status: Successful
Data Recovered: 99%

Why Head Failure Requires Professional Data Recovery

A hard disk head operates extremely close to the platter surface. Physical problems inside the hard drive should not be handled using normal computer repair methods.

Opening the hard drive outside the proper environment can introduce dust and contamination onto the platter.

If your hard disk is clicking, very slow, not detecting correctly, freezing, or showing important inaccessible data, avoid repeatedly powering it on.

Professional diagnosis at the earliest stage can improve the possibility of successful recovery.

Seagate Hard Drive Data Recovery in Chennai

Ram Infotech Data Recovery provides professional hard disk data recovery services in Chennai for physical, logical and firmware-related failures.

We handle recovery cases involving:

Read/write head failure
Clicking hard disks
Weak or damaged heads
Bad sectors
Firmware problems
Hard disks not detected
Slow-reading hard drives
Accidental formatting
Deleted partitions
Corrupted file systems
PCB and controller problems
Desktop and laptop hard drives

We provide data recovery solutions for Seagate, Western Digital, Toshiba, HGST and other storage devices.

Need Data Recovery?

If your Seagate hard drive has stopped working, is making unusual sounds, or your important files are inaccessible, professional diagnosis is recommended before attempting further recovery software or repeated power-on cycles.

Ram Infotech Data Recovery handles hard disk, SSD, NVMe, external hard disk, USB drive and memory card recovery cases.