Hi, I've had my Galaxy S4 for almost a year with no issues. When I went to bed last night, my Galaxy S4 had about 90% charge, when I woke up (about 6 hours later) it was dead. This has never happened before. Nothing was running on it (that I am aware of). I had downloaded the World of Goo demo last night, but have since uninstalled it. I charged it this morning to about 30%, walked the dog for about 20 minutes and the phone was back down to 19%. I didn't turn any app on. Also noticed that I cannot send or receive messages (using Textra or the default messaging app) but I have more than enough bars (using AT&T) But I can get on the internet without Wifi and other apps with update their data (Twitter for example) As an aside, for the past couple of days, I noticed that, in Textra, when I click the microphone button to speak my text in, the entire keyboard disappears along with Speak Now half-page. This doesn't happen in other apps. Also I have a couple of Tasker shortcuts on my home screen to change the volume and open an app, nothing too fancy. They now have no effect. I can open Tasker and run the "script" just fine. Any ideas what may have happened and what I can do to fix it? Thank you. p.s. During the time I took to write this, even though it is USB'd into my PC, the battery has dropped 3 percentage points.