Casebook entry · Portable drives · EDR-2025-2308
Down the Stairs With Three Winters of Estuary Work.
The drive slipped from a wildlife photographer's grip at the top of the stairs and finished on the hall tiles. Now it ticks five or six times and gives up
, the light stays on but nothing appears
, and it holds three winters of estuary work
— commissions delivered as JPEGs, every RAW original here and nowhere else.
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In plain English.
That tick is an arm sweeping blind. The fall knocked the heads out of true, they can no longer decode the servo pattern that tells them where they sit, and the drive parks them and tries afresh. A lit LED promises nothing either — it says the adapter board has power, not that the mechanism behind it works. He plugged it in twice, heard the same routine, and put the drive away. On freshly dropped hardware, that restraint is worth more than any software.
The tools this job took.
See how your case runs →| System | The part it played | Why we rate it |
|---|---|---|
| DeepSpar Disk Imager 4 | Graded every head before bulk reading, so the weak one could wait | Images by head map — timeouts, resets and power-cycling managed per head |
| PC-3000 Data Extractor | Ran the capture with the transplanted stack in place, region by region | The PC-3000's imager, taking its orders from the firmware side |
| UFS Explorer Professional Recovery | Raised the exFAT volume from the image and validated every NEF inside | Handles the harder filesystems well — APFS, ReFS, XFS, ZFS and Btrfs |
On the bench.
Silicone off, adapter out — underneath, a standard patient
Strip the StoreJet's silicone bumper and unplug its small USB adapter card, and what remains is an ordinary 2.5in SATA drive that took an extraordinary knock. On the bench supply it could be powered deliberately — held quiet between tests instead of being asked for a fresh spin-up every time a laptop came looking for it.
A stack from a matching donor, and a survey before any reading
The replacement heads came from the same drive family and firmware line, and with them fitted the patient answered again. Reading did not begin at sector zero. First came the survey: each head graded on how cleanly it worked, so the plan matched the drive on the bench rather than a textbook. Three heads passed; the fourth laboured, and its surface was set aside.
Bank the sound surfaces early, save the bruised one for last
The three healthy surfaces were captured first, on short timeouts with power cycled between stalls, so the bulk of the archive was safe before the fourth head was asked for anything. Its territory came off last, at a crawl. Four days, start to finish — and on a drive that has met a floor, slow is not a compromise. Slow is the treatment.
How it ended.
Every NEF was opened and rendered before sign-off — a file that lists but will not draw is no recovery at all. The originals went home on a new drive with a second copy made the same day, and three winters over the estuary are now stored the way they always should have been: twice.
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