I have a HTC One AT&T Version Unlocked. My sense version is 5.0 and android version is 4.3. How to update it? I have also haviong issues on activating WiFi hotspot, every time i am enabling that, an error would occur and it says that contach att.com/mywireless or call 611 what to do.?/ I have searched on google and found that, they adviced me to change my at&t phone into google play editio using bootloader process. Is it safe to do?? and if not is there any other process to do. the main thing i am in india now. help me please help me???