A lecturer at a further education college in Nuneaton finished marking on a Thursday evening, took the pen drive out and found on Friday morning that nothing would open it. It worked the night before. It works on nothing now, on either of the two college machines, on her laptop at home or on a colleague's. The only thing any of them will say about it is a line in Disk Management reading no media, with no capacity beside it. Nine years of course material, worked examples and marking records were on it and there was no copy anywhere.
| Media | A USB pen drive that worked one evening and could not be opened the next morning on any machine. It appears in Disk Management with the description no media and no capacity. It holds nine years of teaching material. |
| What was reported | Pen drive, working the previous night, unrecognised the next day on four different computers and several ports, listed in Disk Management as no media with no size shown, nine years of course material and marking records, no copy anywhere. |
| Fault class | A controller failure. The small processor on the drive was still powering up and answering the host enough to be listed, but could no longer reach the memory behind it, so it had no capacity to report. The memory itself was expected to be intact, since a controller dying does not disturb what is stored. |
| On the bench | Assessed under a stereo microscope, with the controller confirmed as responding but reporting nothing and the memory package examined for physical damage. The memory was desoldered under hot air and read on a specialist programmer, bypassing the failed controller altogether, and the translation between the logical layout and the physical pages was reconstructed from the dumps. The course material was located in the reassembled image, opened, and written to fresh media. |
No media is a phrase Windows uses for a card reader with no card in it. That is the clue. The system has found a storage device, asked it how big it is, and been told there is nothing there. On a pen drive with no removable part, that answer can only come from a controller that is running but has lost contact with the memory it is supposed to be managing.
The distinction between this and nothing at all is worth understanding. A stick that produces no entry anywhere has a power or a contact problem. A stick that appears with no size has power and contact and a broken brain. The second is more promising than it sounds, because the memory is a separate component and can be read without the controller ever working again.
Controllers fail suddenly and for ordinary reasons. They are cheap parts working hot in a small plastic body, and they die from heat, from a marginal supply or simply from age. Nine years of daily use in college machines is a long service life for a device that cost a few pounds. There is rarely a moment of abuse to point at, which is why the owner is so often certain nothing happened.
Reading the memory directly is the standard answer and not a last resort. The chip comes off, is read on a programmer, and the arrangement the dead controller used is reconstructed from what comes back. The stick does not survive that, and it was never going to work again in any case. What survives is nine years of teaching, which was the point.
The casing came off under magnification. There was no visible damage to the memory package, no cracking around the joints and no sign of heat, which is normal for this failure and left the controller as the only candidate. It was drawing a plausible current and answering, so power was reaching the board correctly.
The memory was lifted under hot air and read on a specialist programmer, giving consistent dumps across repeated passes. Working out the arrangement was the substantial part of the job. The interleave across the dies had to be established, the block order reconstructed and the error correction applied before anything resembling a directory appeared. When it did, the volume assembled with almost no losses, and files from every year were opened before the set was written to fresh media.
Nine years came back, including the marking records for a cohort still part way through their course, which was the part she had been dreading. A handful of documents from the final fortnight were incomplete, which is what happens when a controller fails during a write, and those were listed by name.
A pen drive is £250 + VAT. Taking the memory off is chip-level work, named in the published exclusion, so 50% of the quote was settled upfront and the rest once she had her material back.
Stop trying it and take the wording seriously, because it is telling you something specific. No media means the controller is alive and the memory behind it is unreachable, so plugging it into more machines cannot help, and neither can changing the drive letter, updating the driver or running a repair utility. Refuse any offer to format or initialise it: on a drive in this state those commands go nowhere useful and, if the controller wakes up briefly, they go somewhere very unhelpful indeed. There is no software route past a dead controller, so treat anything advertising one with caution. Send the stick as it is, in a small rigid box, and if you have a rough idea what was on it and roughly when it was last written to, put that in the note, because it lets the bench recognise a correct reconstruction when it sees one.
What this job cost, and on what terms. This one was charged at £250 + VAT, the figure agreed in writing before any work began. Paying for a job like this one. This file sits in the half the guarantee does not reach. Four sorts of work are excluded from no fix, no fee and there are no others: DVR jobs, forensic jobs, chip-level work, and electronic or mechanical failure. On any of them half the quoted figure is settled before the bench starts, with the remainder due when the files go back. Everything outside those four — a deletion, a formatted card, a broken file system, a lost partition, and firmware or service-area repair, which counts as logical however it sounds — runs under no fix, no fee, so an attempt that fails costs nothing.
If yours is doing the same thing. This card was read at Oxford Data Recovery on the Oxford Science Park, about fifty-five miles down the M40. Post it tracked and insured, send it by a courier you book yourself, or bring it to the Oxford reception during Mon–Fri 9:00am–5:30pm — there is no collection service and no counter in Coventry. The free look at it takes two working days from booking in and produces one written figure that then holds.
Freephone 0800 689 0668 to talk it through first. The shipping form and what goes in the parcel are on the contact page, and every band is published in full — including which work sits outside no fix, no fee.
These are real enquiries, from households and from businesses in Coventry and out across Warwickshire — Nuneaton and Bedworth, Rugby, Leamington Spa, Warwick, Kenilworth, Solihull, Stratford-upon-Avon, Atherstone and Southam. Names are gone: the customer, the company, the job title, anything at all that would point back at a person. What stays is the reasoning — what turned up, where the fault genuinely sat, which approach it demanded, and which machine on the bench did the work. One of the thirty-six was refused, and it earns a place here as squarely as any of the rest.
A connector that never fitted properly has been working its solder joints loose the whole time
An intermittent contact writes half a change and leaves the index describing something that is no longer there
A camera asking to format a card is a camera admitting it cannot read the index, nothing more
A stick listed with no media at all? Ring 0800 689 0668. Sticks are £250 + VAT and the assessment costs nothing.