SSDs fail differently to hard drives — usually suddenly, and often with no warning. Recovery is possible, but the technology makes it more complex. Here's why they fail, what can be recovered, and what not to do in the meantime.
SSD recovery is possible, but NAND, controllers and encryption make it harder than a hard drive. Stop using it, don't reformat, and get a specialist diagnostic.
An SSD has no heads and no platters — nothing mechanical to wear out or crash. Your data lives in NAND flash memory chips, and a controller chip decides where every piece of it physically sits, spreading writes across the chips to make them last and keeping a private map — the translation layer — of where everything went. When an SSD fails, it usually fails electronically: the controller stops responding, the firmware that runs it corrupts, or the flash cells themselves wear out. The catch is that the data on the chips is often perfectly intact — the drive simply can't present it, because the part that knows how to read and unscramble it has failed. That's why a dead SSD so often shows up as nothing at all: no drive in Windows, no capacity in the BIOS, as if it were never plugged in.
SSD failures are electronic, not mechanical — and where the fault sits decides how recoverable your data is.
The controller is the drive's brain. When it dies the SSD often vanishes from the computer completely, even though the NAND chips holding your data are untouched. The commonest serious SSD fault — and often a recoverable one.
SSDs run complex firmware. A bad update, a bug or a power cut can corrupt it, so the drive appears with the wrong capacity, drops into a locked or read-only mode, or disappears entirely.
Flash cells can only be written a finite number of times. On a heavily used or elderly drive, cells wear out, bad blocks spread, and the drive turns unstable or read-only.
An SSD interrupted mid-write — a sudden power cut, a pulled cable — can be left with a half-updated internal state, so the file system reads as damaged or RAW.
A knock, a spill or a surge can damage the controller or the circuit board, especially on portable and NVMe drives, cutting off access to otherwise-healthy chips.
Most modern SSDs encrypt everything by default, with the key held inside the controller. If the controller is dead, that key can be out of reach — which shapes what can be recovered.
It would be easy to promise every SSD back, but SSDs deserve a straight answer, because they don't behave like hard drives. Three things make them harder. TRIM: when you delete a file or format an SSD, the drive is told those cells are free and usually wipes them within seconds — so deleted-file recovery, which often works well on a hard drive, is frequently impossible on an SSD. Wear levelling: your data is scattered across the chips in a shifting, controller-specific pattern, so even reading the raw flash gives back a scrambled jigsaw that has to be reassembled. Encryption: if the drive encrypts at rest and its controller has died, the key may be gone with it. None of this means an SSD is hopeless — controller and firmware failures, where the chips themselves are fine, are often very recoverable. It means the honest answer depends on how the drive failed, and the quickest way to know is a free diagnostic.
With an SSD, writes are the enemy. The goal is to stop anything from being written until it's in safe hands.
Power it down and take it out of the machine if you can, so the drive's own background erasing can't run while it sits there.
A failed firmware update, a power cut, a drop, or a gradual slow-down to a crawl? Each points us at a different fault.
Drop it in or post it insured. We'll tell you whether it's a recoverable failure or a TRIM situation before you spend anything.
SSD recovery is a different discipline to hard drives, and it's done in-house. The route depends on whether the controller can still be reached.
We work out whether the fault is the controller, the firmware, the NAND or the file system, and whether encryption is involved. You get a clear answer and a fixed, written quote first.
Where the controller still partly works, we use specialist SSD tools to talk to it directly, rebuild its translation tables and read the data around the fault.
Where the controller is dead, we read the NAND itself and reconstruct that model's translation and wear-levelling scheme, turning scrambled flash back into whole files.
For a drive's own hardware encryption we work through its controller; for BitLocker or FileVault we'll need your key or password. Then we rebuild the file system and check the data reads correctly.
Everything is imaged read-only and worked from a copy, and you get a full list of what came back before you commit to anything.
The questions we're asked most about failed SSDs.
Often not, and it's only fair to say so up front. Most SSDs use TRIM, which erases deleted data within seconds, so unlike a hard drive there's usually nothing left to recover. If the drive itself has failed — controller, firmware or NAND — rather than a file simply being deleted, the outlook is much better, because the data is still sitting on the chips.
Usually not. A drive that's invisible in Windows or the BIOS most often has a dead controller or corrupt firmware, with the NAND — and your data — intact behind it. That's actually one of the more recoverable SSD situations.
It's the same discipline. NVMe, M.2 and SATA SSDs all store data in NAND behind a controller — the connector changes, the approach doesn't.
If it's BitLocker or FileVault, have your recovery key or password ready and we can work with it. If it's the drive's own hardware encryption and the controller has died, recovery may not be possible — the diagnostic will tell you honestly, before any charge.
SSDs start at £300 + VAT, with the diagnostic free and no fix, no fee on most jobs. If the job needs chip-level work there's a 50% deposit toward the specialist bench time, and the balance only if we recover your data.
Power it down and send it in. We'll run a free diagnostic and give you a straight answer on what's recoverable — a dead controller usually means your data is still there.