I had the weird issue of my screen staying on after texts, missed calls, etc. to the point that it would continue to drain the battery if I let it. The only way to remedy this was seemingly to activate the puzzle lock piece. On a missed text, call, etc., the screen would turn on to notify me with a visible puzzle lock screen, but then shut off after literally 1 second. Now I feel like I'm in a race against my own phone to detect a text and rip it out of my pocket to swipe the screen before it goes black and I have to hit the sleep/power button to turn it back on and swipe it that way. It's stupid. Yes, I want the screen to not be on all day, but damn... 1 second? Is there any happy medium???