Very odd, I was using my day one release 6+ and just hit the home button to wake it up. I was just about to backup and update from 8.0 to 8.1 when it shut off. I proceeded to restart the phone and it went into a boot reboot cycle. After about ten minutes I was able to get it on and back it up. I then noticed it showed 100% charge after all day usage. So I updated to 8.1 with no issues. I used it the rest if the night and plugged it into the wall over night. I woke up to a dead phone that would only show the black screen with battery symbol and a thin red line. Well crap my first iphone that has ever crapped out on me. Anyone else hearing of any issues? Seems to be hardware because it won't charge or hold a charge. Anyways all the local apple stores are 3-4 weeks back ordered. So I just sent it off to Apple and hopefully will have it back 5-7 days. I'm having a hard time typing on this little 5s . Other than the recent issue I'm loving the 6+ Great battery life when it was working. I guess I'll have to pull out the mini for awhile.