D6633 TWRP cannot decrypt/mount encrypted volume

[madbot69]

hello there,

Z3 D6633 here running 5.0.2 (HK) with TWRP rooted with superSU. Trying to upgrade to the newly released 5.1.1.

The phone had been be Encrypted some months ago and everything is fine. However, when I booted into TWRP to try to patch in 5.1.1, TWRP popped up with a password prompt. I entered the decrypt password (and other passwords I can think of) but TWRP replied with:

Unable to mount storage, and
Failed to decrypt data.

Google tells me there had been some issues with TWRP 2.8.4.1 to 2.8.6.0 unable to decrypt encrypted volumes so I went and grabbed the latest XZdualrecovery 2.8.21 and ran that in. All seemed fine and TWRP was updated to 2.8.7.0. Unfortunately, upon booting into recovery, TWRP still count not decrypt the volumes no matter what passwords I enter.

Does anyone have any ideas to get around this, short of a factory reset..? The SD card is also encrypted so I am trying to avoid factory reset if possible..

Thanks in advance

 

[tweker]

No. I find it ridiculous that it is simple and easy to encrypt, but to decrypt one needs a full reset losing all data? Android is fing lame. Can't wait to buy a tablet so I CAN encrypt both phone and tablet. At least with a win7 tablet decrypting will never be an issue. Android is more of a toy that destroys eyesight imo.