Data Recovery Case File · Cameras, Drones & Cards · Better Than It Looks
A Full-Size Card Has a Real Board Inside It
Her enquiry describes damage at the worst possible moment and the format works in her favour. A card broken "by accident just as I was about to back up the images. It got squashed and the plastic casing warped and came apart, revealing the chips inside. Now it won't fit int"o a reader. Seeing the components exposed looks like the end of it. For a full-size card it is very often the opposite — because unlike the small cards this archive usually deals with, there is something inside that can be worked on directly.
| Media | Full-size SD card — outer shell crushed, warped and separated with the internal circuit board exposed; card no longer seating in a reader; images not yet backed up |
| Reported situation | Card crushed accidentally before a planned backup · plastic shell warped and separated · internal circuit board and components visible · card no longer fitting a reader · images required |
| Fault class | Enclosure failure on a discrete-assembly card — internal board and memory devices potentially intact and directly accessible |
| Equipment used | No attempt to fit the card to a reader · all fragments retained · board examined under magnification for trace and component damage · memory devices read directly from the board where intact · media validated by rendering |
The decode: two card formats, two very different outcomes
Why the small cards are usually final: a microSD is monolithic — memory and controller fabricated together and encapsulated into a single moulded block. There is nothing inside to separate, nothing to lift off, and no board to work on. Physical damage that reaches the package generally ends the case, which is why those enquiries in this archive are handled so cautiously.
Why a full-size card is different: it is larger, and the space is used properly. Inside the plastic shell is a small circuit board carrying discrete components — memory devices and a controller, laid out conventionally and soldered to it. The shell is packaging. So a shell that has warped and come apart has failed at exactly the layer designed to be sacrificial, and the assembly it was protecting may be entirely undamaged.
What that means practically: where the board and its components survived the crushing, the memory can be read directly from the board — bypassing the card's external contacts, the reader, and the fact that it no longer fits anything. That route simply does not exist on a small card, and it makes her position considerably better than the appearance suggests.
What the assessment establishes: whether the crushing reached the board. A warped shell can transmit enough force to crack the board, fracture a trace, or break a solder joint — and that is determined under magnification by examining the components and their connections, rather than inferred from how bad it looks.
What she must not do, and it is the instinct: try to fit it into a reader anyway, or reassemble the shell and force it. It will not seat correctly, forcing it can damage the reader, and pressure applied to an exposed board is exactly the load that cracks it. The card should not go into anything.
How to handle it in the meantime: keep every fragment, including pieces of shell, in case anything is attached to them. Handle the board by its edges, avoid touching the components and contacts, and avoid flexing it. Put it somewhere it cannot be pressed — an envelope inside a rigid box rather than loose in a bag or a pocket.
The note about the timing: being about to back up when it broke is the most common moment in this whole archive, and worth no reproach whatever.
On the bench
No attempt was made to fit the card to a reader, a warped shell not seating correctly and pressure on an exposed board being the load that cracks it. All fragments were retained, including shell pieces, in case components remained attached. The board was examined under magnification for trace and component damage — a full-size card carrying a discrete assembly rather than the single moulded block used in small formats, so the shell fails as packaging while the assembly may be intact. Memory devices were read directly from the board where intact, and media validated by rendering.
The outcome
The board examined under magnification, the memory read directly where the assembly had survived, and images validated by rendering. Free assessment, one fixed written figure including VAT, 50% of parts and labour upfront with the balance only on successful recovery. The decode: full-size cards and the small ones in phones are built completely differently. A microSD is a single moulded block with nothing separable inside, which is why damage there is usually final. A full-size card is a plastic shell around a real circuit board with discrete components — so a shell that came apart failed as packaging, and the board can be read directly.
Full-size card crushed with the board showing
Don't try to fit it into a reader and don't press the shell back together — it won't seat correctly, forcing it can damage the reader, and pressure on an exposed board is exactly the load that cracks it. Seeing the components is much better news than it looks. The small cards in phones are a single moulded block with memory and controller fabricated together and nothing separable inside, which is why physical damage to those is usually final. A full-size card is a plastic shell around a real circuit board carrying discrete components, so the shell has failed as packaging and the assembly it was protecting may be entirely intact — and the memory can be read directly from the board. Keep every fragment and handle it by the edges.
Don't put it in a reader — call Guildford Data Recovery on 01483 901310; all fragments retained, board examined under magnification, memory read directly where the assembly survives.
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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.