This has only happened once, but I was using bluetooth making a call and the navigator to get to a place I'd never been to before, both while the D4 was in the VZW car dock. The phone froze and I had to hard reset it (hold power + down for 20 sec). The back was kinda warm, so I figured the cause was that the phone was running hot from all of the tasks and it froze.
My question is, what do you all use to keep the phone cool? Any other theories on what caused this? Big picture, I want to know how to use these things without risking another freeze.
Thanks in advance for the help.