[mrheineken08]

as far as your headfone issue goes it sounds like you may have a bad adapter as you say u use it all the time and plug it in to your cig lighter it may have damaged the usb connecter, this same thing happened to my charger it wouldnt charge until i wiggled the loose connector a certain way and then plug it in to the phone. the usb jacks have 11 pins and if one of them is bent or not sitting right inside it could disable any number of functions based on what or if any pin combo is damaged. kind of a flaw with htc usb since its so hightech n all. good luck if u still cant get your fone to boot pm me i know some tricks.