Data Recovery Case File · Cameras, Drones & Cards · Get the Card Out Now
The Card Was in the Water Too
His enquiry is about a camera and his concern is correctly placed elsewhere. On the last day of a holiday, "our waterproof camera decided to let some water into it. This has caused the camera itself to play up — not charging properly. Anyways, my main concern is the memory" card. He is right to care about the card rather than the camera. And the card has been sitting in a flooded compartment since, which makes the next few actions matter more than anything else in this case.
| Media | Memory card from a sealed underwater camera following water ingress — card exposed to liquid within the compartment; camera exhibiting charging faults |
| Reported situation | Waterproof camera admitting water during use · camera not charging correctly since · memory card resident in the flooded compartment · holiday photographs required · water type and duration of exposure to be established |
| Fault class | Liquid exposure to card contacts and internal connections — corrosion progressive; memory package sealed and typically unaffected |
| Equipment used | Card removed from the camera and dried before any insertion · no power applied to card or camera · contacts and package examined under magnification for corrosion · residue removed before electrical assessment · read through test points where contacts were compromised |
The decode: the three urgent things, and why the card is the good news
First — take the card out now, and do not put it into anything. A wet card inserted into a reader can short across contacts, which risks the card and the reader together. It must come out of the camera and be allowed to dry completely before it goes near any device. This is the single most likely way to turn a recoverable card into a lost one, and it is exactly what people do first because they want to know.
Second — no power to anything. The camera should not be charged or switched on, and the card should not be inserted. Corrosion is driven by voltage. A wet or contaminated circuit with power across it corrodes actively, eating through traces and contacts, and the camera "not charging properly" is a sign that current is already finding paths it should not. Every attempt to charge it advances the damage.
Third — establish what the water was. Fresh water is comparatively kind. Salt water is far worse, because salt is conductive and draws moisture from the air, so a device that appears dry is still carrying a conductive, corrosive residue that continues working long after the visible water has gone. If this was the sea, the card needs the residue removed properly rather than simply being left to dry — and that is a job for someone with the right solvent and an ultrasonic bath, not a windowsill.
Why the card itself is the encouraging part: a memory card is an encapsulated package. The memory devices and controller are moulded into a sealed block, so water does not reach the storage. What it reaches is the external contacts and the fine internal connections between the package and those contacts — which corrode, and which are the failure mechanism here. The photographs themselves are not touched by water.
What that means for the route: where contacts have corroded beyond use, the manufacturer's test points give direct access to the memory, bypassing the damaged interface entirely.
On the seal failing: almost always a hair, a grain of sand, or sun cream in the gasket, or a door not fully latched. Worth knowing for the replacement rather than as reproach — the seals need checking and the gasket wiping before every session in water.
On the bench
The card was removed from the camera and dried before any insertion, since a wet card in a reader can short across its contacts and take the reader with it. No power was applied to card or camera — corrosion being voltage-driven, and the reported charging fault indicating current already finding unintended paths. Contacts and package were examined under magnification, residue removed before electrical assessment since salt residue remains conductive and corrosive after drying, and the memory read through test points where the contacts were compromised.
The outcome
The card removed and dried before any insertion, residue cleared and the memory read through test points where contacts had corroded. 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 whose sealed camera flooded: get the card out now and put it into nothing until it is fully dry, because a wet card can short and take a reader with it. Do not charge the camera — corrosion is driven by voltage and the charging fault means current is already going where it should not. And the card itself is a sealed package, so the water reaches the contacts rather than your photographs.
Camera that flooded with a card inside
Take the card out now and don't put it into anything until it's completely dry — a wet card inserted into a reader can short across the contacts and damage both. Don't charge the camera or switch it on either. Corrosion is driven by voltage, so a wet circuit with power across it actively eats through traces and contacts, and a camera that's suddenly not charging properly is telling you current is already finding paths it shouldn't. If it was sea water, that's considerably worse: salt is conductive and pulls moisture from the air, so a device that looks dry still carries a corrosive residue that needs removing properly rather than being left on a windowsill. The card itself is a sealed package, so the water reaches its contacts rather than your photographs.
Don't insert it anywhere — call Newcastle Data Recovery on 0191 406 1051; dried before any insertion, residue removed before electrical assessment, memory read through test points where contacts have corroded.
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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.