Data Recovery Case File · Cameras, Drones & Cards · Position Over Size
The Card Is Whole and the Connections May Not Be
His enquiry is admirably precise about the damage. A microSD card "that has a small crack running across the card, about 75% of the way back. The card is still whole, but now cannot be recognised by my computer." He has described exactly where it runs, which is the useful information. On a card, the size of a crack matters far less than where it falls — because everything electrical happens between one end of the card and the other, and a fracture is either across that path or beside it.
| Media | microSD card with a visible fracture across the body approximately three-quarters of the way from the contact end — card intact as a single piece; not enumerated |
| Reported situation | Card carrying a visible crack across its width · fracture positioned approximately three-quarters of the way back from the contacts · card remaining in one piece · not recognised by the host computer · photographic and video content held |
| Fault class | Physical fracture of a monolithic package — internal trace continuity between memory and contacts to be established before access |
| Equipment used | No further insertion attempts · package examined under magnification with fracture path traced against internal routing · continuity to manufacturer test points established · raw memory read past the controller where continuity permitted · media validated by rendering |
The decode: what is inside the card, and why position is everything
What a microSD card actually is: not a board with components on it. Memory and controller are fabricated together and encapsulated into a single moulded block, with fine internal connections running from that block to the external contacts at the front edge. There is nothing separable inside, which is why these cards behave so differently from larger formats under physical damage.
Why the crack's position decides the case: the memory itself occupies part of the body, and the routing between it and the contacts runs along a defined path. A fracture that crosses that routing severs the connections and the card cannot present itself — which is what he is seeing. A fracture through an area carrying no routing may leave everything electrically intact even though the card looks alarming. Three-quarters of the way back is away from the contact edge, which is a more hopeful position than a crack near the front, though it depends on the internal layout of that particular card.
Why the memory itself is almost certainly undamaged: a crack in the encapsulation does not erase anything. Data is held as trapped charge in cells inside the package, and a fracture in the surrounding material does not reach or alter it. His photographs are intact; what may be broken is the path to them.
What that means for the route: manufacturers place test points on the package for their own production testing, and reading through those bypasses the external contacts entirely. So the question the assessment answers is whether the fracture severed the routing to those as well — which is established under magnification by tracing the fracture path against the internal layout, rather than by guessing from the outside.
Why he must stop inserting it: a cracked card in a slot is being flexed by the contacts pressing against it, which can propagate a fracture that was survivable into one that is not. It can also leave fragments in the reader. A cracked card should be treated as something that no longer goes into anything.
The practical note about the format: the small cards are the least tolerant of physical damage of any storage medium in common use, precisely because there is nothing inside to separate. Anything valuable held on one is worth copying off promptly rather than left there.
On the bench
No further insertion was attempted, a cracked card being flexed by the contacts and a survivable fracture propagating under that load. The package was examined under magnification with the fracture path traced against internal routing — the position of a crack relative to the connections between memory and contacts determining the outcome far more than its size. Continuity to the manufacturer's test points was established, and the raw memory read past the controller where continuity permitted, then descrambled, error-corrected and reconstructed. Media was validated by rendering.
The outcome
The fracture path traced against internal routing, continuity established and the memory read past the controller. Free assessment, one fixed written figure including VAT, 50% of parts and labour upfront with the balance only on successful recovery. The decode, for anyone with a cracked card: position matters far more than size. Memory and controller are moulded into one block with fine connections running to the contacts at the front, so a fracture across that routing severs the path while one through an area carrying no routing may leave everything working. Your data is held as charge inside the package and a crack does not reach it.
Memory card with a visible crack
Don't put it into anything else — the contacts flex a cracked card as it seats, which can turn a survivable fracture into a final one, and fragments can be left in the reader. Describe where the crack runs when you ask, because position matters far more than size. A microSD card isn't a board with parts on it: memory and controller are moulded together into a single block, with fine connections running from that block to the contacts at the front edge. A fracture crossing those connections severs the path and the card can't present itself; one through an area carrying no routing may leave everything electrically fine. Either way your photographs are held as charge inside the package, and a crack in the surrounding material doesn't reach them.
Don't insert it again — call Guildford Data Recovery on 01483 901310; fracture path traced against internal routing under magnification, continuity established, memory read past the controller.
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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.