Help S4 Screen not timing out

[jasphoto]

I saw an old thread for prior galaxys - http://androidforums.com/samsung-galaxy-s2-t-mobile/538777-lock-screen-not-enabling.html

My screen suddenly stopped timing out a day or so ago.

I started this as I was trying the battery option (didn't think it would work)

I pulled the battery and it it seems to be working now - But is there a reason it stopped timing out? Bug or ME!

Thanks & hoping it dosn't start again

 

[Kelmar]

Probably bug. It's an electronic, from time to time it just needs rebooted.