Hope to have a little help here, ive got the htc sensation black, i've had the odd battery running out really quick problem for a while. but about an hour ago i got a system update, i had lowish battery, but the it was completed fine, as the phone tried to boot up it only got as far as the white htc screen then went black again, and it repeats over and over, not getting any further than that screen. i was wondering if anyone had any ideas?