I got a HTC m9 I got it in March so it wasn't that cold . This fall I was sitting outside having a beer and when I went to look at my screen it was off .I tried to power it on HTC screen came on than shut off I figured it died . I came inside plugged it in than a screen comes up with a pic of battery with red ! In it .after it warmed up I tried to turn it on and that's when he'll broke loose .I got error after error for everything including HTC home sence after many hours searching online I figured out how to get my phone back working .than it happened again and again . Now it's winter and iv learnt that if I'm going outside to get it cold I shut it off and before I turn it back on I plug it into my charger and if the battery charges it's OK but if the red ! Shows up just wait a bit longer keep plugging it in till battery charges than turn it on . I just changed the battery and that never fixed it . Anyone have any clue what's up with this thing ?