It Fell and Makes a Noise

The decode

A fall that stops a drive reading is a head fault. That the drive fell and now won't read points at a head fault — a fall jolts the read/write heads, which float a hair above the spinning platters, and knocks them out of true, so afterwards they cannot read and the drive cannot present its data. So the fault is in the heads, disturbed by the impact, not in the recording: the fall has stopped them reading, which is why the drive won't read, rather than the data being gone. His data is usually still on the platters, behind that head fault, reached by replacing the heads in clean air. A fall that stops a drive reading is a head fault, not lost data.

His guess is close: the mechanism was disturbed. That he assumes something has become dislodged is close to right — the noise when it is plugged in is the disturbed heads and their assembly trying to work and failing, so his sense that something moved is sound, with the detail that it's the fine head mechanism, not a part that can simply be reseated. His data is reached from the platters, the heads replaced in clean air.

It's opened in clean air, not run on. Because the fault is in the heads, the drive is opened in clean air — the heads and platters inspected under magnification, the heads replaced with matched donors, alignment set, and the drive imaged, so the data is read once the heads read again. And because a dropped drive making a noise has disturbed heads that can touch and score the platters if run, it must not be powered further, as each attempt risks the surface. His data is reached from the platters, by clean-air head replacement, which is how a dropped, noisy drive is recovered. The free diagnostic confirms the platters, and one fixed quote goes in writing before any work is agreed.

The honest prognosis rests on the platters. If the heads are at fault over intact platters — likely if the drive isn't run repeatedly after the fall — clean-air head replacement lets it image and the data come back, often in full. If it was run on and the platters were scored, recovery narrows to the intact regions, confirmed before any work goes ahead.

On the bench

The drive was not run on given the fall and the noise. It was taken from its enclosure and profiled on a current-limited bench supply, the noise localised to the heads. It was opened in clean air under laminar flow, the heads and platters inspected under stereo microscope, matched donor heads fitted, alignment set. It was imaged on DeepSpar behind PC-3000 UDMA, the filesystem parsed in R-Studio and the data validated.

The outcome

The head fault addressed in clean air, the drive imaged, and the data recovered onto fresh media. The diagnostic stage is free and reports back within two working days of the media arriving; after it you hold one written quote, fixed with VAT included. Opening a drive commits donor stock and clean-air bench time, so half the quoted figure is payable before that stage begins, and the remaining half falls due only once the recovery has succeeded — if it fails, the rest is never billed. The decode: a fall, a noise, and no read point to a head fault — addressed in clean air, not by running it. Addressed with sound platters, your data comes back.

Our case files are written up from genuine enquiries our lab has handled for customers across Swindon and Wiltshire, anonymised to protect client confidentiality. Each one describes the diagnostic and recovery approach our engineers apply to that fault, using the equipment listed.