I have an APFS volume high Sierra installed and converted a FileVault volume from HPFS+ to APFS. Everything Was working until I tried to open the volume. I've tried the macOS password, Apple ID Password, FileVault recovery key, and iCloud recovery key and none let me in. What password does it need? Why APFS encrypted volume won't accept password?
'APFS encrypted volume won't accept password' issue indicates that the code you inputted is incorrect or some errors happened during decrypting process. As a result, the password can't be accepted by the Mac operating system and the APFS encrypted volume is inaccessible. What's worse, if the APFS encrypted volume is the boot volume, your Mac computer will get crashed. Here's how to fix 'APFS encrypted volume won't accept password' without data loss.
How to fix 'APFS encrypted volume won't accept password' without data loss?
No matter what causes it, we can effectively fix 'APFS encrypted volume no longer accepts password' issue by reformatting. But as an APFS encrypted volume always contains important files, before reformatting, please make sure that you have made a backup. If not, you can try a professional APFS data recovery program like iBoysoft Mac Data Recovery to retrieve all lost data back.
Step 1: Recover lost data from encrypted volume with iBoysoft Mac Data Recovery
iBoysoft Mac Data Recovery is one of few APFS recovery tools which can recover data from encrypted volume. It deserves the best APFS data recovery software in the world as it works perfectly in different scenarios. It is able to recover data from encrypted APFS volume, recover data from unmountable, unreadable, formatted, inaccessible APFS drive, and recover deleted/lost APFS partition.
Besides, iBoysoft Mac Data Recovery can also support HFS, HFS+, exFAT, FAT32. It is compatible with macOS 10.15/10.14/10.13/10.12 and Mac OS X 10.11/10.10/10.9/10.8/10.7. Moreover, almost all storage devices can be supported by iBoysoft Mac Data Recovery, such as hard drive, external hard drive, USB flash drive, SD card, memory card, pen drive, digital camera, etc.
Tutorial to recover lost data from encrypted APFS volume
Note: If your Mac get unbootable, you need to plug the hard drive to another Mac computer or run macOS from an external drive, and then install and download iBoysoft Mac Data Recovery.
Step 1: Launch iBoysoft Mac Data Recovery. Click "Find Lost APFS Partitions" on the top right corner. The program will list all connected hard drives.
Step 2: Choose the drive that contains your APFS encrypted volume, then click "Next". Then you will see all APFS volumes on the selected drive.
Step 3: Select the APFS encrypted volume that you want to recover data from and click "Next".
Step 4: Enter the password and click "OK". The software will start scan for all lost data on the APFS encrypted volume.
Step 5: Preview the scanning results, choose files we want to recover, and then click "Recover" to finish encrypted APFS data recovery on Mac.
Step 2: Fix 'APFS encrypted volume won't accept password' by reformatting
1. Launch Disk Utility.
2. Select the APFS volume on the left part of the window.
3. Click Erase on the top of the Disk Utility window.
4. Complete related information (name, format, scheme), then click Erase button.
After reformatting, the APFS volume can be used again. More importantly, remember your password and don't let similar problem happen again.