Devices · external & portable drives
Portable drives take knocks, drops and cable-yanks no internal drive ever faces — and they add a part of their own that fails: the USB bridge board. Both problems are recoverable. Guesswork is what isn't.
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| The message | What it means | First move |
|---|---|---|
| You need to format the disk in drive X: before you can use it | RAW file system after a fault or unsafe unplug — the files are still there | Never click Format |
| USB device not recognized — the last USB device you connected malfunctioned | The bridge board or drive isn't enumerating | Try one other cable, then stop |
| Unknown USB Device (Device Descriptor Request Failed) — Code 43 | Windows can't even read the device's identity | Bridge-level fault — lab job |
| The drive is not accessible. Data error (cyclic redundancy check) | Bad sectors on the disk inside | Stop mounting it |
| Disk Management shows Not Initialized / RAW | Windows offers to wipe what it can't read | Decline — initialising destroys data |
| One of the USB devices attached to this computer has malfunctioned | Power or bridge failure in the enclosure | Often the bridge, not the drive |
Your device is logged with its own case reference the moment it arrives. An engineer assesses the fault, confirms what's actually recoverable, and you get a fixed price in writing — no diagnosis fee, no obligation, and no paid work until you say go.
We separate enclosure problems from drive problems first — a surprising share of 'dead externals' are healthy disks behind a dead bridge.
WD and others encrypt on the bridge board itself. We recover the keys from the original electronics so the data decrypts, rather than reading back scrambled sectors.
The drive is imaged on hardware tools, the file tree rebuilt from the copy, and your files returned on new media with free return postage.
Before you pay the recovery fee you approve a full listing of what came back. Your data returns on new media with free return postage, and the case only closes once you've confirmed everything opens on your side.
Worth knowing: the 2023 SanDisk Extreme portable SSD failures led to a class action against Western Digital after 2TB and 4TB units lost data without warning — and the firmware update issued did not cure the underlying fault. If yours is misbehaving, image it early.
Clicking on power-up and a dissertation due in nine days. Donor heads, a careful image, and the bridge's encryption keys carried across — every chapter and reference file came home with time to spare.
Send everything, including the broken enclosure. On many models the USB board holds the encryption keys, and without it a healthy drive reads as random noise.
No. That message means the file system can't be read, not that it's empty. Formatting writes over exactly the structures we'd use to get everything back.
Transit is hard on drives: vibration, knocks and temperature swings. Drives that were quietly marginal often fail on the first power-up afterwards. It's one of the most common stories on our bench.
Almost always. The enclosure is sacrificial; what matters is the state of the disk and its board inside — and whether the bridge electronics survived enough to give up their keys.
Every restart of a damaged device costs data. Open a case first — the diagnosis is free either way.