An SSD that has vanished from your computer — not in the BIOS, showing zero bytes, or simply gone — is alarming precisely because there was no warning. But it’s one of the more recoverable SSD failures: the memory chips, and your data, are almost always fine, cut off by a controller that has stopped working. Reaching that data means reviving the controller or reading the memory directly. We recover undetected SATA, M.2 and NVMe drives for people across the UK — post yours in or drop it at our Belfast lab.
Most disappearing SSDs are a controller or firmware failure — your data’s still on the NAND, waiting to be read.
Unlike a hard drive, which usually gives warning signs before it fails, an SSD tends to fail without notice — and the most common way is that the controller, the chip that manages the memory and talks to your computer, stops working. When it does, the drive drops off the system entirely: it’s not in the BIOS, doesn’t appear in Windows, or shows up with a capacity of zero or completely the wrong size. It looks like the drive is dead, but the NAND flash chips that actually hold your data are almost always perfectly intact — they’re just unreachable, because the part that reads them has failed.
That’s why a ‘not detected’ SSD is often recoverable: the data is there, and the job is to get to it. Sometimes the controller can be coaxed back into a readable state; sometimes it’s bypassed entirely and the memory chips are read directly. Either way, an SSD vanishing is more often a hardware fault with the data safe than genuine data loss.
Dead controller. The commonest cause — the drive isn’t detected at all, or appears with the wrong size. The NAND is fine; the controller has failed, and the data is reached by reviving it or reading the chips directly.
Reports 0 MB / 0 GB. The drive is seen but claims to be empty or a fraction of its real size — a firmware or controller fault. Your data hasn’t gone; the drive just can’t report itself.
Bricked firmware. A firmware bug, a failed update or a power event drops the drive into a ‘safe’ or panic mode where it won’t mount — recoverable with the right tools to talk to it in that state.
Power-loss corruption. A sudden power cut mid-write can scramble the mapping tables the drive uses to locate data. The chips are intact; the index needs rebuilding.
Physical or connector damage. A cracked M.2 stick or a burnt connector — if the NAND survived, the data is read from the chips directly.
Don’t initialise, format or partition the drive if Windows offers to when it briefly appears — those write to it and can destroy the mapping needed to recover the data. Don’t reflash the firmware yourself to try to un-brick it — a failed reflash usually makes recovery harder or impossible. Don’t keep power-cycling a drive that’s locked up, hoping it comes back. And don’t run ‘fixes’ or manufacturer tools that write to or erase the drive. On an SSD, restraint protects your data far better than experimentation — keep it as it is and let it be assessed.
Where the drive can still be reached, we work through its controller and firmware using specialist SSD equipment, talking to it in engineering modes to bring it back to a readable state and image it. Where the controller is dead or the drive is damaged, we go to the memory directly: chip-off and monolithic recovery, removing or reading the NAND chips on a programmer. Raw NAND is the controller’s scrambled version of your data, so we then reverse its error correction, wear-levelling and scrambling to reconstruct the original files. It’s intricate, drive-specific work — and all done on images, never the original chips, so the recovery can’t make things worse.
It starts with a free diagnostic: we identify whether it’s a controller, firmware, NAND or connector fault, tell you honestly what’s recoverable, and give you a fixed written quote with a file listing to check before any chargeable work. On most jobs it’s no fix, no fee, and pricing is per case. It’s all done by post or drop-off, so you don’t need to be nearby — post the drive in from anywhere in the UK or Ireland, or drop it off in person.
Usually not. An SSD that vanishes from the system has almost always suffered a controller or firmware failure — the memory chips, and your data, are typically intact but cut off. We recover it by reviving the controller where possible, or by reading the NAND chips directly when it isn’t. It’s one of the more recoverable SSD situations, so don’t assume the worst.
It’s a classic firmware or controller symptom — the drive is detected but can’t report itself correctly. Your data hasn’t gone anywhere; the drive just can’t present its true size. Don’t initialise or format it when prompted, as that can overwrite the mapping. We recover it at the controller or chip level.
Often, yes. A failed firmware update or a power event can drop an SSD into a locked ‘safe mode’ where it won’t mount — but the data usually remains on the NAND. It takes specialist tools to talk to the drive in that state and bring it back, or to read the chips directly. Don’t attempt another reflash yourself, as that tends to make things worse.
Yes. M.2 sticks are handled the same as any SSD, and where memory is soldered to a laptop board we read it in place or via chip-off. The one harder case is Apple Silicon and T2 Macs, where the storage is soldered and tied to a security chip — we assess those individually and tell you honestly what’s possible.
Not if the data matters. Manufacturer utilities that reset, re-initialise or firmware-flash a drive can erase or overwrite the data while ‘fixing’ the drive. If you simply want a working drive and don’t need the data, they’re fine; if you need what’s on it, stop and have it recovered first.
No. Our lab is in Belfast, but recovery of an undetected SSD is done by post or drop-off, so we work with clients right across the UK and Ireland. Send the drive in with insured, tracked delivery, or drop it off in person — the service, diagnostic and pricing are the same wherever you are.
Don’t initialise, format or reflash the drive — get in touch. We’ll find out whether it’s the controller, firmware or NAND, tell you honestly what’s recoverable, and give you a fixed quote before any chargeable work — no fix, no fee on most jobs.