Portable drives · case file · MHD-2025-6635
Their Verdict: A Bent Read/Write Head.
A lead caught on a chair arm and took the Seagate off a desk in Furze Platt while a copy was running. The verdict arrived first, a full day ahead of the drive itself: the IT firm that looks after his site laptops had opened it once, closed it again, and been candid — the ticking is coming from the heads
and this wants a lab, not our bench
. He had bought the drive secondhand through a local listing. It held a picture of every driveway and patio I have ever laid
.
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In everyday terms.
Two things follow from a verdict of that kind. It was accurate, and it also marked the point at which a workshop bench has nothing further to contribute. Heads fly above the platters at a clearance set on the assembly line and counted in nanometres, so once an arm sits out of true there is no bench in the country that will realign it; you fit a donor stack from the same family, or you stop there. The unknown is never the arm itself, it is the surfaces underneath, because a disk knocked over mid-read can put a head down onto the platter. Contact damage is worked around rather than read through. A fixed price offered before the lid comes off is therefore a guess in good clothes.
What the bench used here.
How a job is handled →| Tool | Why we used it | What it brings |
|---|---|---|
| DeepSpar Disk Imager 4 | Scored every head for reliability once the donor stack began reading | Head map first, then head-by-head reads, holding resets, timeouts and the power line steady |
| PC-3000 Data Extractor | Ordered the passes so the marked band came last, once the sound ground was secured | The PC-3000's imaging module, working under firmware-level control |
| ACE Lab PC-3000 Express | Read the internal service log, the one history a secondhand disk cannot rewrite | Reaches the vendor-specific commands that ordinary ATA has no way of issuing |
The lab work.
Open it, then let the platters dictate the plan
The microscope upheld the diagnosis: one arm stood proud of its neighbours, and a stack out of alignment is worthless as an instrument. What lay beneath counted for more. A landing had left a faint contact band across the second platter, shallow rather than the deep circular scoring that closes a case outright. Its own firmware log supplied the rest of the history, and it had been retiring sectors well before he bought it.
Finding a stack the slim mechanism would take
Slim portable Seagates leave very little room inside, and mechanisms built that way are particular about their parts. Patient and donor needed the same family and the same firmware generation; the capacity printed on the label narrows the search and decides nothing. Our donor shelf supplied a stack, it went in under laminar flow, and the disk came up to speed evenly. Reads were then graded head by head before any bulk copying began.
The sound platters first, the marked band last
While the transplant was at its freshest, the undamaged platters were copied end to end. The contact band waited until last and was worked lightly: short passes, retries limited, rest between attempts. It surrendered a reasonable proportion of itself, then stopped returning anything, and we let it be.
How the job closed.
Nearly the whole archive returned on fresh media: years of job photographs, checked and filed by address. The shortfall was set out in writing as well. One folder covering his first summer of trading sat beneath the contact band and remained there, and he had wanted those pictures for a warranty dispute. Against a used disk knocked over mid-read and held nowhere else, the account still closed in his favour.
More of the jobs we've closed.
Filed under Portable drives too.
Does any of that match your case?
Nothing needs deciding until the diagnosis is back: switch the device off, send it in, and let the findings settle it.