Error Unlocking APFS Volume: Couldn't Mount Disk - How to Recover Data?

Posted by Molly to Mac Data Recovery on July 3rd, 2018

I'm having trouble accessing data on my encrypted APFS disk. It refused to open with all passwords, and neither could I find it in Disk Utility. The error was: Error unlocking APFS Volume: Couldn't mount disk (-69842). I'm using MacBook Pro macOS High Sierra. Anyone can help unlock this APFS volume or recover my data from the locked or unmountable APFS volume?

Why can't I unlock APFS volume and mount it?

Generally, the possible reasons of unlocking encrypted APFS volume failure and inability to mount it in Disk Utility might be: invalid passwords, APFS file system errors, drive corrupted or damaged, or other unknown reasons. No matter what it is, you'll lose access to the data stored in it.

Can I recover data if I failed to unlock the APFS volume and mount it?

Yes. You can recover lost data from the encrypted APFS volume, even if you failed to unlock and mount it. What you need is professional APFS data recovery software, just like iBoysoft Mac Data Recovery.

iBoysoft Mac Data Recovery is one of the best APFS data recovery software that recovers lost data from APFS volumes on Mac. Besides, it is able to repair APFS volumes, recover unbootable APFS partitions, recover lost data from formatted, damaged, corrupted, unmountable, inaccessible, unreadable APFS partitions, and recover data from encrypted APFS external drives, etc.

Recover data from encrypted APFS volumes

1. Launch iBoysoft Mac Data Recovery.

2. Click "Find Lost APFS Partitions" on the top right corner, then the program will start searching for the locked and unmountable APFS volume.

Recover data from couldn't be mounted APFS volume

3. When all APFS volumes found, select the APFS volume where you lost data and click "Next".

4. Enter your password. The program will start scanning for lost data from the encrypted APFS volume.

5. Preview the results, choose files you expected and click "Recover" to get them back.

Still have questions?