My screen is completely black. The keys at the very bottom light up (between the “htc”). When is not connected shows the green blinking light, when connected for charging the light is red but the screen remains black either way. Calls go direct to voice mail. It is charged. Tried turning off and on, but no change just the T-Mobile sound and sometimes a small vibration. Phone was working fine in the morning; the alarm app works fine, had to use the HTC flashlight but didn’t work. Took a photo, and the flashlight did work. HELP PLEASE!!