Before I went to sleep last night I turned my phone off (50%-ish battery) because I didn't have the power charger nearby. When I went to turn the phone on this morning it didn't it's little vibrate and nothing happened, the soft keys lit up and the phone intermittently buzzed. I did a battery pull and tried to turn it on with no luck so I plugged it into a charger and it wouldn't charge. It didn't help. I did a lengthy battery pull and plugged it in to the charger and now it's charging. I tried turning it on, it went through the whole 4G LTE and VZW hoopla it does at start up and then the screen went black again and the soft keys remained lit while it intermittently buzzed. And when I plugged it in it wouldn't charge. So I did a battery pull. Plugged it in, and now it's charging. Any ideas? Got it through Amazon Wireless. Phone is not rooted. And haven't tried a factory reset.