So, pretty much I got the most recent Sprint/HTC update the other day and ever since, I haven't been able to switch from my front camera to the main camera.
The settings menu offers no option to change the camera and the other option buttons are greyed out. I've done several resets, tried other camera apps (still stays stuck), and changed every setting I could find to no avail. I've attached a pair of screenshots in an attempt to clarify what I mean.
Anyone else have this issue?
Try this: Settings -> apps -> select all tab -> scroll down & select camera
Select force stop & clear data.
Then do a Sim battery pull.
Also see my HTC EVO 4G LTE Tips here: http://cellphoneforums.net/htc/t343484-htc-evo-4g-lte-tips-tricks.html
I don't know if this is also worth noting, but when I take pictures with the front camera, the quality is substantially worse than it should be. Like instead of being what I see on the screen before I press the camera button, its a gray, pixelated version of it. (and no I don't have any filters on)
Buddy of mine went through the same issue. Performing a Sim Pull seemed to take care of it temporarily (about an hour) but it would eventually happen again. We even performed a Hard Reset and it did the same as the Sim Pull. Took it to Best Buy and showed them the problem, they to performed a Hard Reset and it came back. At this point, they were going to order hime a replacment phone and when he went ot take it back. It all of a sudden was working perfectly and has been ever since.
On a side note, have you performed the various system updates? I would make sure those are applied. Take it to the Sprint Store so they can see it and perform a hard reset themselves. The important thing here is to make sure they log it. If it comes back it will show they already performed a Hard Reset and the problem still exists. Maybe you'll get lucky like my buddy and it will work perfectly, if not, then it should be considered faulty hardware and need replacing.
You do have TEP, right?