Data Recovery Case File · Cameras, Drones & Cards · What You Cannot See
Bending a Card Fractures Conductors Buried Inside It, Which Leave No Visible Trace
His enquiry reports a careful inspection reaching a reasonable and wrong conclusion. A card bent while being inserted into a reader, now unrecognised by reader or camera, where "the internal chip board looks OK, so do the connector pins." Both of those are the parts that survive bending: what fails is the network of fine conductors running through the card body between them, and none of it is visible.
| Media | 16GB memory card subjected to bending — memory package and external contacts visually intact; card not enumerating in reader or camera |
| Reported situation | Memory card bent during insertion into a reader · card no longer registering in the reader · card no longer registering in the camera · internal board observed and reported as undamaged · connector pins observed and reported as undamaged · recent photographic content sought |
| Fault class | Internal conductor fracture from flexing — memory package and contacts unaffected; continuity between them interrupted within the card body |
| Equipment used | Visible component condition distinguished from internal continuity · no further insertion permitted · card examined under magnification with continuity traced between package and contacts · memory read at chip level directly from the package where continuity could not be restored · translation layer reconstructed in software |
The decode: what is inside a card, and which part bending breaks
What a card actually contains: three things. A memory package, a small controller, and a set of conductors joining them to the external contacts — all encased in a rigid laminate that is the card itself.
Why the package survives bending: it is small and solid. A memory chip occupies a fraction of the card's area and does not flex with it, so the region around it bends while the component does not.
Why the contacts survive too: they are at the edge and they are thick. External pins are built to withstand repeated insertion, which makes them the most robust part of the assembly.
What does not survive: what runs between them. Fine conductors carrying signals from the package to the contacts are printed within the laminate and are extremely thin, and flexing the card stretches them.
Why they fracture invisibly: they are inside the material. A break in a conductor buried within the laminate produces no external mark whatever, and the card looks exactly as it did.
Why his inspection was therefore accurate and misleading at once: he examined the two parts that survive. Both observations are correct and neither addresses the failure.
Why a broken conductor produces exactly this symptom: the controller cannot communicate. A card that cannot signal to its contacts is a card no host can detect, regardless of the memory being perfect.
Why the memory is almost certainly perfect: it holds content without power and was never electrically stressed. Bending interrupts communication rather than affecting storage.
Why further insertion should stop: a fractured conductor may still be touching. A partial break that still conducts intermittently is far easier to work with than one that has separated fully, and each insertion flexes the card again.
How the content is reached: the memory package is addressed directly, bypassing the conductors and contacts entirely. The stored data is read at chip level and the arrangement reconstructed in software.
On the bench
Visible component condition was distinguished from internal continuity — a card comprising a memory package, a controller and fine conductors joining them to external contacts within a rigid laminate. The package is small and does not flex with the card, while external contacts are built for repeated insertion, so both survive bending. Conductors printed within the laminate are extremely thin and fracture without external trace. Memory was read at chip level directly from the package.
The outcome
Visible condition distinguished from internal continuity, further insertion stopped, and memory read at chip level where continuity could not be restored. Free assessment, one fixed written figure including VAT; where a chip has to be removed, 50% of parts and labour is payable upfront with the balance only on success — otherwise no recovery, no fee. The decode: you inspected the two parts that survive bending. The chip does not flex and the pins are built for handling — what breaks is the fine wiring between them, printed inside the card where nothing shows.
A card that has been bent
Stop inserting it, because a fractured conductor may still be touching intermittently and each insertion flexes the card again — a partial break is far easier to work with than one that has separated completely. Your inspection was accurate and looked at the wrong things: the memory package is small and doesn't flex, and the external pins are built for repeated insertion, so both survive. What breaks is the fine wiring printed inside the laminate between them, which leaves no visible trace at all. Your stored content is untouched.
Stop inserting it — call Cambridge Data Recovery on 01223 655015; visible condition distinguished from internal continuity, continuity traced under magnification, memory read at chip level where needed.
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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.