Been noticing since they've added a few new 4G towers near by that my phone will randomly shut off and need a battery pull. Just started about 1 week ago. Currently put droid smith on it and while I slept the phone did the same thing. I updated the PRL today and disabled the 4G to see if that will help. Any suggestions? I've had to do batter pulls 3-4 times a day so I stopped using my case..