anyone here facing this problem before? after download the update and start to restart. when the phone is booting, the red triangle warning suddenly prompt out and stuck over there. need some help please... T__T Like this picture :
you haven't root access (anymore). hopefully you have created a backup from before your update. goto below link and (try to) fix your problem. -- http techdraginfo.blogspot.com/2012/06/root-htc-sensation-xe-on-android-403.html -- (although it seems for an X-One it worked for my Sensation XE as well). good luck.