It fixed the HTC Media Link mobile hotspot issue. HTC sent a fix for it after the phone was released but ATT made them pull it in anticipation of this update. I know this because I installed the HTC fix, but I had to do a wipe and lost it. The HTC update was no longer available so I called HTC and was told that ATT was releasing a fix. After this update, my medial link worked again.Check software #. Should be 1.26.502.12 now. It fixes home and back buttons but don't know what else.