I have an Ideos U8150 and whenever the "data enabled" checkbox is ticked and the "2G mode only" is unticked the phone switches between 3G and H frequently and its messing up my connection , mainly in Messenger ( I use EpinePhrine from the Android Market).
I've tried the #*#*4636*#*# method , but it still switches back and forth anyway. :(
So right now I'm just using the good old 2G for connection. Good enough for just messenger, but still slow.
Any idea guys ?