Hi, so my galaxy s3 is about a year old. Sometimes it will turn off when I take a photo and not turn on unless I connect it to the charger (and it wasn't a battery issue), but this only happened a few times last year. Yesterday i was using the navigation and it turned off out of nowhere, and every time I'd turn it on again and open the navigation again, it would turn off. I must've tried like ten times to use my navigation system but my cell phone kept turning off (all this while it was connected to the car charger). It fixed itself and eventually worked normally, but later that night, while using the iheartradio app, it turned off again (battery was at 65%), when I turned it back on, the battery was at 10%, but it wouldn't stay on. I tried many times to turn it on, but it would shut off by itself once it got to the startup screen. Then today, the same thing happened! I wasn't using any apps! I just put the phone in my pocket (98% battery), 5 minutes later, it had turned off, I tried to turn it on, and the battery again was at 10%!!! And again it wouldn't stay on, it would keep shutting down when getting to the startup screen, it didn't stay on until I connected it to the car again. I'm so fed up, I depend on my phone and gps for work so I can't deal with these problems. I already installed the new update last night so that's not it. Please help!! I really hate iPhones but I'm really considering getting one with all the problems I've had with android.