Why an SSD may not be detected in BIOS/UEFI
No SSD detection in BIOS/UEFI does not always mean a “damaged drive”. Sometimes the cause is the M.2/SATA slot, power delivery, controller mode settings, or unstable firmware. If the SSD contains important data, the key point is to avoid further writes and not worsen the condition of the device. If the issue concerns SSD/NVMe, see how SSD and NVMe data recovery looks in the lab.
Safe steps you can take immediately
- Turn off the computer and do not keep trying to boot it repeatedly “until it finally works”.
- If this is a SATA drive: swap the SATA cable and the power lead, and use another port on the motherboard.
- If this is an M.2 NVMe/SATA drive: check that it is seated correctly (gently press it down and tighten the screw), then test the second M.2 slot if one is available.
- In BIOS/UEFI, check whether the device appears in the Storage/NVMe section and whether a device “hiding” mode is enabled (rare, but it happens on some motherboards).
- If the drive appears only sometimes, stop testing — this is a typical sign of instability (controller / firmware), and it is better to move to safe imaging.
What not to do if the data matters
- Do not initialise, format or “repair” the partition.
- Do not run CHKDSK or automatic system repair tools on this device.
- Do not update SSD firmware “just to try”. An update can change the FTL state and make recovery harder.
- Do not perform long stress tests — with firmware problems they can push the device into safe mode or make it disappear entirely.
When it is already a job for the lab
If the SSD disappears, shows 0 GB, switches to read-only mode, or the computer freezes during reading, the best decision is to stop testing and hand the device over for SSD/NVMe data recovery. In the laboratory we perform safe imaging first and only then analyse the file system on the copy.
If the problem concerns a spinning drive, the mechanics and symptoms are different — see also HDD data recovery.
Need help? Submit the device through the form — we will prepare a safe course of action without risky “home testing”. Go to the submission form. If you want to understand what affects pricing, see the guide: how much data recovery costs.
