hi all, not sure if i can raise my issue here about my note 2.

Recently facing that the phone itself doesnt auto lock.
No matter how many times i've checked with the setting, it is all fine.
The sign before the lock isnt work well is when the phone starts to hang. when i restart the phone, this issue came out. After troumandez times of trying... suddenly it went ok.

i am so frustrating on this as if u r unable to lock the screen, it is quite battery consuming...

Anyone can help?