I have tried turning off the system update notifications for my G2 and have not been successful so far. I have already tried turning it off via Settings/Application Manager/All. What else can I try here? Thanks.
Unfortunately that is not possible any longer. My advice is to take the update. You'll have to at some point or either you'll accidentally accept it. The HD voice and video works well between compatible phones. And, if you run into a problem, better now than later.