Devices · Mac & MacBook
Three design decisions make a Mac harder to read than an ordinary PC: the volume is encrypted before it reaches you, the flash is often fixed to the logic board, and a Fusion machine spreads one volume over two disks. Consumer software stops at the first. Send the password with the machine, from Maidenhead or anywhere else, and we deal with the other two.
Describe the fault to an engineer
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| The symptom | The likely cause | Start here |
|---|---|---|
| A folder icon blinking with a question mark | The Mac can find nothing at all to boot from | Leave it off and test the disk |
| A crossed-out circle on the start-up screen | macOS is present but refuses to load | Suspect the disk, or its container |
| First Aid reports damage it cannot mend | APFS corruption Disk Utility cannot resolve | Nothing before an image |
| com.apple.DiskManagement.disenter error -119930868 | That APFS volume declines to mount | An image usually recovers it |
| Disk Utility can't repair this disk. Back up as many files as possible | macOS has no more options | Trust it and power down |
| Boot looping ever since a macOS update | Container or firmware damage above intact data | Recoverable as a rule |
Nothing becomes chargeable until you have said yes to it. Each item takes a case number of its own the moment it arrives, an engineer establishes what has actually failed, and you are given a candid view of which files stand a realistic chance of returning. The single quote that follows is fixed, written down, and costs nothing.
Whatever holds the lock — FileVault, a T2 chip, Apple Silicon — the material beneath it is encrypted. With the password supplied, the case proceeds as any other would, beginning with an image taken carefully enough to decrypt later.
A drive that comes out is imaged in the ordinary manner. Soldered NAND, or a dead logic board, takes the work down to component level, where the storage stays readable long after the Mac itself has given up starting.
A single file on a Fusion Mac may have blocks on the SSD and blocks on the mechanical disk. Each is imaged, the CoreStorage or APFS map binding them is reconstructed, and what returns to you is complete documents rather than fragments.
Nothing is billed until you have seen the recovered file list in full and told us to go ahead. What comes back arrives on new media, with the return journey at our cost, and the case stays open at this end until you have opened every file yourself.
On the numbers, plainly: Apple releases no model-by-model reliability data, and soldered Mac storage sits outside every public failure survey, Backblaze's among them. A site that names a hard 'MacBook failure rate' has invented it. That figure exists nowhere outside Apple.
A Fusion Drive pairs an SSD with a hard disk, and here the hard disk was failing, taking the logical volume down with it. We imaged both, rebuilt the mapping that ties the two together, and returned a decade of a design studio's work from a Mac the Apple Store had written off.
You must. On any Mac secured by FileVault, a T2 chip or Apple Silicon, either the login password or the recovery key turns encrypted flash back into readable files. Without one of them the encryption holds against every laboratory equally, ours included.
Not necessarily, because the two trades answer different questions. Apple's repair route swaps the failed board and hands back a working machine; whatever sat on the old one leaves with it. Whether the storage can be read is a separate exercise.
Because the volume in the Finder is bookkeeping laid over two physical disks, a modest SSD and a slower mechanical one. Blocks of one document may sit on either, so a single disk yields fragments. Both are imaged and the map rebuilt.
Usually, though the job drops to board level. With the password in hand and the encryption chain intact, soldered flash will surrender its contents in place; what fails is desoldering the chip to read it in isolation.
Each further power-up asks more of a drive that has already begun to fail. Open the case first and let the free diagnosis tell you what is left.