unable to anto lock screen
hi I m a new S4 user and I encounter a problem.my screen timeout and my touch key light never go off base on the setting I made. This problem will only happen when I power up the phone follow by keying the code to turn off the Wi-Fi power save mode. I check on all my screen timeout and touch key light setting all is unchanged but this setting just don't take place,I need to press the "power" button to off the screen and touch key light.is there any hidden features that can solve this problem? Another question is can the Wi-Fi power save mode able to off permanently and no need to always go in to disable it everytime the phone is power up? Thanks hope you people can help me out.