The controller had lost its translation tables — the data beneath was fine, read straight off the flash.
A USB stick carrying the only copy of a set of work files powered on and blinked its light, but every computer it touched insisted it be formatted before use. That format demand is one of the commonest ways a flash drive fails, and one of the most misunderstood: agreeing to it is the worst thing you can do, yet the message itself usually means the data beneath is still intact. It's the hallmark of a failed controller — the small chip that runs the drive — losing the translation tables it needs to make sense of the flash.
On our gear the stick appeared but wouldn't read normally — consistent with a controller that had lost its mapping rather than damaged flash. A flash drive keeps its data on a NAND chip in a scrambled, error-corrected form only the controller knows how to unscramble; when that controller fails, the data is all still present but no longer reachable by the usual route.
With the controller dead, the route is to bypass it entirely and read the data at a lower level. We lifted the NAND flash chip off the board and read it directly on a flash programmer, producing a raw dump of everything held on it. Then we reversed the controller's particular error-correction and the scrambling pattern it had applied, turning that raw dump back into a clean, readable image — exactly the flash-level work the PC3000 and our programmers are built for — before rebuilding the file system on top.
We rebuilt the directory structure, checked the work files opened correctly, and copied the recovered data onto fresh media.
Every file came back intact and was returned five working days later. The takeaway we always pass on: if a stick suddenly asks to be formatted, don't — unplug it and bring it in, because the data is usually still there. And a USB stick is a handy pocket, not a backup; it should never be the sole home for anything that matters.
Flash programmer · PC3000 — imaging and recovery carried out in-house. Every job is imaged before any recovery work begins, and the original media is never written to.
Send us your device for a free diagnostic, and tell us a little about what happened — an engineer will review it and confirm your exact quote in writing before any work begins.
Getting your data back begins with getting the device to us. Pack it up safely, pop your contact details inside, and send it over — once we’ve run the free diagnostic, we’ll confirm your exact price in writing before any work starts.
Posting it? A tracked, insured service is what we’d recommend. Rather drop it in? You’re welcome Monday to Friday, 9am to 5:30pm — just package the device up as above first.
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Yes. When the controller fails the flash is usually intact — we reach it with the PC3000 or by reading the NAND chip directly, then rebuild the data.
USB sticks and memory cards are from £250 plus VAT, and portable SSDs from £300 plus VAT. No fix, no fee on most jobs.
No. That usually means the controller has lost its tables, not that the data is gone. Do not format it — bring it in.
Start with an instant online quote, or call and talk it through with us first. You'll have a clear, fixed price before any work begins.