Just upgraded my Nexus S to Android 4 aka Ice Cream Sandwich. Was looking through all the new features, and decided to enable encryption, which worked (and is working) just fine. Now I'm wondering if I can undo that and revert to an un-encrypted filesystem.

There does not seem to be an option in the settings area, and while I'm not fussed about doing a factory reset, I just wonder if I'm missing an obvious option somewhere. Can anyone help? Or even confirm that the factory reset is the only way out?

  • I just got my Galaxy Nexus, and was thinking about turning on full disk encryption... until I saw your question. Why do you want to undo it? Have you encountered any issues with it? Dec 27 '11 at 4:12
  • No issues at all. This was just a result of my "Hey, I didn't read the warning screens properly and now I'm curious that there is no undo button" attitude :D Jan 9 '12 at 21:32

There should have been a warning when you begin the encryption that you had to agree to. The only way to unencrypt it is to perform a factory reset, thereby wiping your data partition completely.

enter image description here

  • Ah, so there is. Thanks! PS Isn't the new screenshot shortcut awesome! Dec 21 '11 at 20:32
  • 2
    @scuzzy-delta: It's great for posting answers on this site, definitely :) Dec 21 '11 at 20:35
  • 1
    A description of how to perform that factory reset would be helpful. I tried the the "factory reset" option in my custom recovery image, TWRP, and that did not seem to do the trick. Feb 11 '13 at 7:08

I'm using Samsung Galaxy Note Android 4.0.3. and I've tried Encrypting and Decrypting several times successfully.

Samsung Note ICS Decryption

  • 6
    That's a Samsung add-on.
    – R R
    Jun 2 '12 at 4:09
  • 1
    A downvote for sharing my knowledge/experience :( if only i could post my screenshots on how I Undo my Disk Encryptions.
    – JonC PH
    Jun 13 '12 at 4:57
  • Wasn't me :) I just pointed out that it's not part of AOSP. That's why I hate it that downvotes are anon.
    – R R
    Jun 13 '12 at 8:03
  • @richard im not saying you gave me a downvote :) no problem :) im just expressing how some people votes without considerations :)
    – JonC PH
    Jun 14 '12 at 13:13
  • 2
    I added a screenshot on how I decrypt or undo encrypt my device. thanks for the upvote that lifted my restriction for posting pictures. sorry guys i dont know how to make the image smaller.
    – JonC PH
    Jun 14 '12 at 13:33

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.