Hi, all, New to the forum. Stumped about a strange battery issue for which I can find no solution or even reference anywhere. There seem to be two possibly interrelated problems. My LG Optimus G Pro thinks that it is in a constant state of fully-chargedness. The battery reading is now constantly at 100%, even though the phone has been on and in full use for half a day - I'm guessing that its actual battery-charged level is around 65% or so. All other functions on the phone seem to be normal. Except... When the screen timeout fade-to-black kicks in after a couple of minutes, NOTHING can revive the phone. It is a zombie. The "back" and "menu" buttons at the bottom of the phone light up when I touch the screen or any button, though, which tells me that the phone has not shut down completely. Nothing I do wakes up the phone, but when I press and hold the on/off button (the physical button at the top of the right side) for maybe 20 seconds, the phone reboots and works fine -- except the battery readout still says 100%. What I've tried: - Disabled the screen timeout. So now the display is constantly on, which isn't great, and the battery readout level is still at 100%. - Removed and replaced the battery. No effect. - Charged the phone (in both OFF and ON states) with the AC adapter. No effect. Data points: - I updated several apps last evening (Chrome, Snapchat, a few others - I don't remember). Maybe this has something to do with something...? - In its initial booting up phase, the battery level is BRIEFLY displayed as accurate. It'll flash, for instance, "70%" for 1-2 seconds, and then that'll be replaced by "100%," where it remains. - All other phone functions seem to be working perfectly, and are otherwise unaffected. Any ideas here? Many thanks for your help.