It started yesterday morning. My LG G3 was fine around 8am, but around 11am for some reason it wouldn't turn on when I pressed the power button or double tap the screen. I took the battery out and restarted, but nothing seems to fix it. After trying several times I was able to get the screen to turn on, but after a few seconds it automatically turned off and during that time for some reason my WhatsApp was saying my Date and Time was wrong, but it was correct. I was able to turn off Screen Timeout and Battery Saver, but that didn't seem to help. During my attempt to diagnose the problem I did notice some strange things like before when I would restart my phone the LG logo would appear for a few seconds and then the Verizon logo for several seconds to a minute, but during the numerous restarts I never saw the Verizon logo, but did see the LG logo. Also, last night I noticed the display is powered and on because I saw the backlight, there was no icons or widgets displayed. Finally I've noticed that while trying to test something that if I'm playing music it will continue to play even when the screen darkens, but when I press the power button it does stop.
Has anyone experienced this problem before? Any assistance will be greatly appreciated.