How we recover data from failed hard drives
Hard drive recovery is our core discipline - it is the work the rest of the lab is built around. What separates a data recovery lab from a computer shop is not effort, it is method and equipment.
Imaging before everything. We do not "repair" your drive and hand it back running - a failed drive is never trustworthy again. The goal is different: get one complete read of your data off the failing drive and onto a healthy one, with as little stress on the patient drive as possible. We use dedicated hardware imagers built for failing drives. They read the drive head by head, tolerate and map errors instead of hanging on them, back off when an area is weak and return to it later, and never write a single byte back to your drive.
Mechanical work with matched donor parts. Head assemblies and motors cannot be repaired; they are replaced with parts from compatible donor drives, matched by model, family and manufacturing details - not just capacity. The drive is opened under controlled conditions in the lab, never in the field. After a head swap the drive typically has a limited working life measured in hours, which is exactly why imaging discipline matters.
Firmware and electronics. A large share of "dead" drives have nothing mechanically wrong with them. The drive's firmware - stored partly on the platters in a reserved service area - has become corrupted, and the drive cannot finish starting up. This is invisible to software tools and needs vendor-specific equipment that can talk to the drive below the level a computer sees. On the electronics side we work at board level: diagnosing failed components, and transferring the original ROM with its drive-specific calibration data when a board must be replaced.
Recovery from the image, verified. Once the drive is imaged, recovery happens from the image - your original drive is done working. We rebuild file systems, extract your folders and verify that files open, then return the data on a new drive or by secure transfer.