Hi there,
I've registered in these forums only to let everyone know how I solved the issue, since like so many other users, my screen wouldn't turn off automatically no matter what I did.
In my case, the issue was the settings of a particular app. I had changed the options of the app so the screen would never turn off while it was running. This seemed to affect the behavior of the screen even in the lock screen!
Here's how the interaction went:
- Start the app
- Put the phone on sleep mode manually (by tapping the power button)
- At some point, wake the phone up without unlocking it, perhaps to check the time on the lock screen.
- While on the lock screen, the phone fails to go to sleep again.
Does this sound familiar? Is your phone's screen failing to turn off JUST some times and you don't know why? If so, try to change the settings on any apps that allow you to keep the screen on while you use them. Since I found out about this, my battery life has improved dramatically.
Hope this helps!
