I have an HTC Inspire 4G smartphone on the AT&T network, which for a short time was their (short lived?) poster child mobile device. And I’ve had my share of glitches, whether hardware or software or some mixture of both. This page is a running log of problems I ran into and what fixes (or not) that worked for me. Your mileage may vary, depending on hardware, software, or time of day.
Camera not detected
Media volume stuck on mute
SD card not available
Rooting and installing new ROM