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PDR / The devices we handle / SSD & NVMe

Devices · SSDs and NVMe cards

Plymouth SSD and NVMe recovery. Generally the flash memory is intact, and only the controller has stopped.

There is nothing to hear when an SSD fails. The system powers off as normal, and on the next start the BIOS gives no sign that a drive exists. Nearly all of it falls into three categories: the controller fails, the firmware becomes corrupted, or power is lost during a write. Western Digital and Crucial drives make up most of our intake from Plymouth. We work directly at the flash, and the sooner we begin, the better.

Nothing readable? Most jobs carry no bill Free diagnosis, then one written price Boxes come to the lab from Truro, Newquay and Tavistock

You will be talking to an engineer
0800 6890668

Most weeks bring one of these. Routine bench work.

Not listed? Try the triage →
Shipping to us: once you receive your quote, pack it securely so it won't move in transit, get it insured for what it is worth, and send it by tracked post to our intake lab in Bristol. We pay the postage back to you. Please contact us before sending if you would like an engineer to check the packing before the box is sealed. More detailed instructions on sending your item to us can be found on our contact page.

The SSD and NVMe makes that turn up most weeks.

Western DigitalSA510 Blue for SATA; on NVMe the Black SN770 and SN850X; and SanDisk branding over the same silicon.
SeagateSATA BarraCuda SSD · NVMe FireCuda 530 · One Touch SSD.
Crucial & MicronSATA gets the MX500; NVMe gets the P3, P5 Plus and T500.
Phison under other namesPNY CS900 · Kingston A400 · Patriot Burst and others: one controller wearing many badges, with one failure common to all of them.

What the messages are telling you.

Not on the list? →
What turns upWhat that points toWhere to start
It identifies itself as SATAFIRM S11Only one cause: a Phison controller has dropped back to a ROM stateDo not touch the vendor utility
The BIOS shows nothing whateverUsually the controller or firmware; the flash behind it is fineChip-level work needed
Shows as 0GB, or at a capacity that is obviously wrongThe flash translation layer (FTL) has failedDo not restart it again
SMART health drops off in a nightGenuine cell wear, or a controller reporting nonsenseCheck the maker's advisory, then image it
Every read returns 0x800701E3This is a hardware faultImage it, and run no repair tools
Firmware updated, and then: Boot device not foundThe firmware write ended half finished; nothing boots nowLeave the power off it

What happens to a drive while it is here.

Cases in the log →
01

A number on arrival, then the free diagnosis Free

Whatever is delivered is booked in using a unique reference (case number) on the date it arrives at the bench. The engineer will identify the actual fault at no charge. This gives a straightforward answer on what can be recovered from the drive and what cannot, plus one written quotation. There will be no further activity until you have read and accepted the quotation.

Diagnosis at no chargeA single written figureYou owe nothing yet
02

Powered up on our terms

Each power-on takes something from a failing drive. We bring ours up in a service mode we control, so the flash responds to us and the firmware that can no longer cope is kept from running.

Brought up in service modeNo trial restarts at all
03

Around the controller

If the controller does not respond, the flash is read directly and the translation table rebuilt in software. A raw dump by itself is useless, but once the table is rebuilt your folder structure appears again.

The flash read directlyMapping tables reconstructed
04

Reordered properly

Wear levelling spreads parts of one document across every die fitted. That is what it was designed to do. The pieces are put back in order, the volume is reassembled, and every entry is checked against the listing before it goes out.

Wear levelling reversedThe volume checked through
05

You give the word, and it ships back

Give yourself time to consider it. It costs you nothing. We list all of the files we recover for you before sending out an invoice, and we only ask for payment once you have authorised it. We also buy media specifically for your recovery and send it back to you, with the return postage paid by us. The case stays here on our bench until we have your confirmation that the files open properly on your own machine.

You see the list and decideWritten to fresh mediaWe pay the postage home

The faults we see most

  • SATAFIRM S11 is bench work: the name appears when a Phison controller drops back to its ROM. Online forums will point you to a utility called a repair. It isn't one. It regenerates the drive, wiping out the record of where every block used to sit. The proper way is to load working firmware onto the controller first, then rebuild the record afterwards.
  • A health percentage is an assertion, not a reading: your software simply reports whatever value the controller gave it, and once the tables are broken that value means nothing. More than one manufacturer has had firmware caught under-reporting the wear on its own cells.
  • Flash layout varies by controller: before a dump becomes useful, the XOR mask has to be solved, along with the correct page order. Removing the chips takes very little of the day; the hours go into decoding the result, one controller family at a time.
  • Deleted on flash means deleted: TRIM starts on those blocks within hours, without being asked, and none of it shows on screen. Delete a file from an SSD and you have that day, not that month.

Know this before you update: updating firmware overwrites the area holding the record of where your files live. If power is lost partway, there is nothing older to fall back on. Most firmware updates complete without any trouble. Take a copy first anyway. Do not update a drive that is already misbehaving.

A job out of the casebook.

PL · PLY-2026-0754FILED ✓

A firmware update halted, and the NVMe with it

A firmware update was still running when the laptop's system SSD gave up, and nothing would read from it afterwards. Working in technical mode, an engineer restored the translator tables, and ten years of the photographer's edits opened again.

99% read back5 days start to finish

Before you seal the box.

Get these done

  • Shut it down fully; not sleep, not hibernate
  • Write the complete model number down
  • Deleted something? Ring us that day
  • Get a quote, then send the drive or M.2 card alone, with no caddy

What to avoid

  • Restarting over and over hoping it appears
  • Forcing new firmware onto a drive that is ailing
  • Running anything at all that writes to it
  • Continuing to use the machine once files vanish

Questions that come up most weeks.

I deleted some files from an SSD this morning. Is there still a chance they can be restored?

Perhaps, if you act today rather than this evening. Because of TRIM, an SSD wipes the blocks used by a deleted file by itself, on its own schedule, for as long as it has power. Hard drives never behaved like that. This is about the only time it makes sense to pull the plug.

The drive appears nowhere at all. Is it finished?

Rarely. When a drive says nothing, odds are the controller or firmware went down and the flash is still intact. We read the chips at the bench, and most of the data comes back.

Is an SSD more difficult than a spinning disk?

Not more difficult, just different. Hard drives fail mechanically. SSDs fail in their controller and in the tables that controller keeps. Where TRIM hasn't reached the blocks, things look reasonably good.

What about flash soldered onto a board?

No. Flash soldered to the board (laptops made that way, plus T2 and Apple silicon Macs) isn't something we take on. If you're not sure which kind you have, ring us first.

A drive that stays switched off gets no worse.

Diagnosis costs nothing. We give you a report listing which files can be read, which cannot, and what is needed to get them off. Do not connect the drive until then.

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