There is an identical question on stack already, but I've already tried the accepted answer:
4.4 Update (Sprint Galaxy S3) disabled pattern lock, can i reenable?4.4 Update (Sprint Galaxy S3) disabled pattern lock, can i reenable?
I had a rooted 4.3 Galaxy S4. I put off the OTA KitKat update for several months and then finally got around to updating it to 4.4 NC5. I used this xda thread for my instructions:
http://forum.xda-developers.com/showthread.php?t=2726868
This is the state of my phone prior to the NC5 upgrade(aka "the clues"):
- Installed FoxFi, which requires installing a cert
- Set up pattern lock (again for FoxFi)
- Connected to company exchange server with stock android mail client
- Device wasn't encrypted
Then I updated and The lock screen page in settings says that all the options are turned off by administrator. Here is what I've tried:
- In Settings -> Security -> Device Administrators: Ensure everything is unchecked (nothing was)
- In Settings -> Security -> Clear Credentials: No errors received
- Tried booting into recovery and do 2 different wipe / factory resets.
Am I missing something here? Why can't I set my screen lock / pattern?