This thread discusses GPE update + issues
Originally Posted by apoptosis66
I converted my AT&T HTC One M8 to GPE a month or two ago. It has been working great, until yesterday when I applied the 4.4.3 OTA update straight from Google. Now the camara doesn't work "Can't connect to camera", and WIFI won't turn on.
Has anyone else had this problem? Should I have never done the OTA update? I thought once I converted to GPE it was the same as a GPE phone.
Thank you in advance for any help.
Might want to check out that thread it discussed some of the camera issues there.
By the looks of things it seems it doesn't properly update/install if your CID isn't right. Though you might want to check out the GPE threads that's quite easy to find here and discuss more with them. I don't have the GPE conversion myself so.