My S5 shuts down on its own with no warning, no rhyme or reason. It attempts to factory reboot when it does it too! It freezes up at least once a week and becomes a $600 worthless brick. This has all been happening since day two that I got it. Went back to Verizon store and they told me nothing was wrong with my phone and they would not replace it. I'm at my wit's end. HELP!
