Originally Posted by pandaball
Maybe it's because you didn't try googling for it. I've already found a method that doesn't involve *#9900#.
Yes, I mean, I 've ask for Google about " Disable Fast Dormancy ", and I also try to disable it in hidden menu ( 3845#*920# ), but no result >_<
Any ideas to disable it ? I heard that this method will increase battery life >_<