Tutorial: Have encryption and no screen lock passwrd on Sony devices running Kitkat topic

Not everyone knows that you can encrypt your device once only and still be able to backup/restore, change or upgrade to a completely different rom all without losing encryption or re-encrypting your device. You can also get rid of screen lock pin/password without losing encryption. Here is the complete Guide:

http://forum.xda-developers.com/xper...vices-t3001721