Hi, I'm hoping someone has a clue to what is happening to this phone! This is my first 'real' phone, so I'm new to this whole thing. I have an LG Premier Pro LTE with Tracfone service. The reason I got the phone last September is because I need it for work... I drive a school van. The phone started being unresponsive a few months ago, I have called both LG and Tracfone and they refuse to talk to me about the issue, they just want me to factory restore it. The only time it happens is IN THE VAN. (Yes, hi karma, kiss my butt.) I at first assumed that it was because I had the heat on in the winter, but if the phone is too hot, wouldn't the metal backing of the phone be warm also? Is there any electronic interference possibility? I've been told it's the battery, but this phone's battery is not removable. I've tried keeping it in my purse away from the heat, but it doesn't seem to matter. My last resort is to use a cold-pack, but I haven't tried it yet. Thanks for reading!