Every once in a while when I'm charging my phone, it goes into car mode (with the large 6-button menu.) That's annoying enough, but then when I exit car mode, every time I make or answer a call the speakerphone is on by default. That makes sense for while it's in car mode, but it still happens after I exit car mode. How do I stop this? I googled this and all I could find was stuff about nearby magnets making it think it's in a car dock, but I don't think there are any near where I put my phone. It also seems to turn off occasionally while it's charging, and I need to wait for it to boot up again. Can anyone think of any way to fix this?