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SATAFIRM S11 is the name the Phison PS3111-S11 controller reports when it cannot validate its firmware and drops into ROM mode. It is common in the Kingston A400 and in budget SATA drives from Silicon Power, Goodram, Patriot, Apacer and PNY, because they share the same DRAM-less controller. Online guides point to a Phison factory tool to fix it; that tool rewrites the firmware and initialises the drive, which is exactly what destroys the data. On the bench a temporary loader goes into the controller's RAM, the map is rebuilt, and nothing is written to the flash. One drive is £300 + VAT after the free look, fixed in writing, 3–5 days at the bench, and on most jobs no data means no bill.
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Phison's S11 is a small, cheap SATA controller with no DRAM of its own, which is why so many budget 2.5-inch drives use it. It keeps its firmware and its translation table in a service area on the flash. On start-up it loads that firmware, checks it, and only then presents the drive under its badge. If the check fails, because a page of the service area has gone bad or a power cut interrupted a write, the controller stays in its built-in ROM and reports the ROM's own name: SATAFIRM S11. The size is usually wrong as well, often 0GB or a small placeholder.
Search the forums and you will be pointed at a Phison mass-production tool as a repair. It is not a repair. It regenerates the drive, discarding as it goes any record of which block held what. Done in the right order, working code reaches the controller first, loaded into RAM rather than written to the flash, and the record is rebuilt after that from the service area and, where the service area is damaged, from the flash itself. The DRAM-less design makes the map more exposed to a bad shutdown, and it also makes the map more scattered across the flash, so the rebuild takes patience rather than a tool.
One more thing the name tells us: a drive that says SATAFIRM S11 has a Phison controller, whatever the label says. A genuine Samsung never reports it. A drive bought cheaply from a marketplace under a well-known name that now says SATAFIRM S11 is a counterfeit, and it is recovered like any other Phison S11 drive.
| What you see | The usual reason | Where that leaves you |
|---|---|---|
| SATAFIRM S11 at 0GB | Firmware failed validation; ROM mode | Recoverable; loader in RAM, map rebuilt |
| SATAFIRM S11 at a small placeholder size | The same | The same |
| SATAFIRM S11 on a Samsung label | A counterfeit with a Phison controller | Recovered as a Phison drive |
| Full size, but empty, after a tool was run | The drive was regenerated | The map is gone; only a carve of unreferenced pages is possible |
| The same drive, a week later, working | Power loss briefly confused the boot | Copy everything off now; it will happen again |
A case number goes on it the day the parcel is opened, and an engineer settles what has actually failed before anything else happens. The drive is read on our own equipment, never in a computer that might send it a TRIM command. Back to you come two things together: a straight note of what is liftable and what is not, plus one figure, fixed and written down. Accept it, or decline and owe us nothing.
Every power-on gives a failing SSD another chance to run its own housekeeping. Here the drive is brought up in the controller's diagnostic state instead, which lets the bench speak to the flash directly and keeps damaged firmware out of the conversation.
On an S11 drive the controller is dropped into its diagnostic state through the SATA port and a temporary loader with working firmware is placed in its RAM. The service area is then read, the translation table rebuilt from it, and where the service area itself is damaged the table is reconstructed from the flash. Nothing is written to the drive at any point.
Nothing is worked on live. The whole drive is imaged once, weak pages retried in their own passes, and the file system is put back together on the image. Encrypted volumes are unlocked there too, with the key you supply, and never on the original.
What was recovered is listed for you first, and only then does a bill exist. Approve the list and it is invoiced; turn it down and it is not — and where nothing has come back, most jobs carry no charge at all. Recovered data travels home on fresh media bought in for your job, with the postage at our end. Your case is not closed until you have opened the files on a machine of your own.
A family PC stopped booting, and the BIOS listed the drive as SATAFIRM S11. Nothing had been run against it, which mattered. On the bench the controller took a loader into its RAM, the service area read back cleanly, and the translation table was rebuilt from it. Ten years of photographs and the household accounts came off in one pass.
Illustrative example — replace with a genuine caseNo. It is the Phison PS3111-S11 controller's own name, reported when it cannot load its firmware. Nothing has been infected, and nothing has been written over. The data is still on the flash.
No. It regenerates the drive and removes the map we would have used to find your files. It is the single most common way a recoverable S11 drive becomes an unrecoverable one.
Because it is almost certainly a counterfeit with a Phison controller inside. Samsung controllers never emit that string. It is recovered as a Phison drive, and you may want a word with whoever sold it.
£300 + VAT for one drive after the free look, fixed in writing before any chargeable work.
3–5 days at the bench after the free look.
The map is still on the flash. The first look is free, the figure is written down before any chargeable work, and on most jobs no data means no bill.