Data Recovery Case File · Portable Drives · Do Not Shake It to Check
A Part Loose Inside the Casing
This enquiry came from a school on behalf of a member of staff, and it contains the single most urgent symptom in this archive. A teacher's WD Elements external drive holding teaching resources with no backup: "the drive could have been dropped, because there is a part rattling inside when you move the drive about." That sentence changes everything about how the device should be handled. A rattle means something has come free inside a sealed mechanism built to tolerances measured in fractions of a hair's width — and the two instinctive responses to noticing it, shaking it again to confirm and plugging it in to see, are the two worst things available.
| Media | WD Elements external hard drive holding a teacher's unbacked-up teaching resources — suspected impact damage; a loose component audible within the enclosure |
| Reported situation | Drive no longer functioning · possible drop not directly witnessed · audible loose component when the drive is moved · teaching resources held with no backup · institutional enquiry on behalf of staff |
| Fault class | Impact damage with a component detached inside the sealed assembly — powering or agitation risking catastrophic surface damage |
| Equipment used | No power applied and no movement · opened under the laminar flow bench with the loose component located before anything else · surfaces inspected and debris removed · matched donor parts as required · PC-3000 Express with Data Extractor prioritised imaging |
The decode: what a rattle means, and why it is urgent
What could be loose: nothing good, and all of it inside the sealed chamber. It may be a screw or a mounting component that has worked free. It may be part of the head assembly itself, or a head that has detached. It may be the small filter or a piece of a ramp. On a device where the read heads fly nanometres above the platter surfaces, any loose solid object inside that chamber is a foreign body sitting on or near the very surfaces that hold the data.
Why powering it is catastrophic rather than merely risky: most faults in this archive get gradually worse with each power-up. This one does not behave gradually. Spinning the platters at thousands of revolutions per minute with a loose object inside the chamber drags that object across the surfaces, and the damage is measured in seconds rather than sessions. A drive that might have yielded nearly everything can be reduced to scored, unrecoverable tracks in a single power-on. It is the one symptom where a single attempt can end the matter.
Why shaking it to check is the second mistake: entirely natural — somebody hears something, and moves the drive again to confirm what they heard. But every movement relocates the loose part, and where it comes to rest determines what happens next. It should be kept flat, still, and moved as little as possible, ideally carried in a way that does not invert it.
What this means for the assessment: the drive is not tested. It is opened under filtered air with the loose component located and removed before anything else, because until it is out, nothing can safely turn. Only then are the surfaces inspected for damage already done, and the head assembly assessed. That order is not a preference; it is the only sequence that does not risk the data.
The institutional point, said usefully rather than critically: a teacher's resources — years of lesson materials, schemes of work, adapted worksheets — represent an enormous amount of unpaid time and are almost never covered by whatever backup arrangement the school runs for its own systems, because they live on a personal external drive carried between home and classroom. That is a very common gap and worth a school knowing about. A shared network folder or a cloud account for staff resources costs little and closes it.
On the bench
No power was applied and the drive was kept flat and still throughout handling, since agitation relocates whatever is loose. It was opened under the laminar flow bench and the loose component located and removed before anything else was attempted — because until a foreign body is out of the chamber, nothing can safely rotate. The platter surfaces were then inspected for damage already caused, the head assembly assessed, and matched donor parts fitted where required. Imaging ran on the PC-3000 Express under Data Extractor, head-mapped and prioritised, in one supervised session.
The outcome
The loose component removed before any rotation, the surfaces inspected and the resources imaged in one supervised session. Free assessment, one fixed written figure including VAT, 50% of parts and labour upfront with the balance only on successful recovery. The decode, for anyone whose drive rattles: this is the one symptom where a single power-up can end the matter, because spinning platters with a loose object in the sealed chamber drags it across the surfaces and destroys tracks in seconds rather than sessions; do not plug it in to see, and do not shake it again to confirm what you heard, because every movement relocates the loose part; keep it flat, still and the right way up. A rattle is the most urgent thing a drive can tell you.
Drive with something loose inside it
Don't plug it in, and don't shake it again. A rattle means a solid object has come free inside a sealed chamber where the read heads fly nanometres above the surfaces holding your data — it might be a screw, a mounting part, or a piece of the head assembly itself. This is the one fault where a single power-up can destroy everything: spinning the platters drags that object across them, and the damage happens in seconds rather than building up over repeated attempts. Resist the urge to move it again to confirm what you heard, because every movement relocates the loose part and changes where it does harm. Keep the drive flat, still and the right way up, transport it in a padded box rather than a bag, and say clearly that it rattles when you hand it over — it changes how the assessment is done.
Don't power it and don't shake it — call Glasgow Data Recovery on 0141 404 0294; opened under filtered air with the loose part removed before anything rotates, surfaces inspected, imaged in one session.
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Our case files are drawn from genuine enquiries received by our laboratory over the past ten years, anonymised to protect client confidentiality. Each one describes the diagnostic and recovery procedure our engineers apply to that fault, using the equipment listed.