dial *#0000#
then option click "check for update"

it will alert you by pop up a message let u to choose which network to connect.
either search for WLAN, or use your 3G network connectivity.

you click on WLAN, search for your home wireless G ROUTER, as the step gonna be like your computer, key in ur password and on the move.

choose yes, after that there'll be another pop-up to to choose connection...

btw, i just update my FW, the only change that i notice is just notification light  faster response? i felt its the same as previous FW

Since i update v21, why i cant watch Youtube (via wlan wifi),....it keeps on Connecting (black with loading screen) for a while and after that unable to connect....

i'm sure my wlan wifi is good since i play the same Youtube's video smoothly in my pc.... why aaa ???? i hate when updating firmware and it get worst than before....

nope i can watch metacafe at a faster speed.... try restart ur phone... i did that.. it worked....

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Added on May 1, 2009, 2:56 pm@those who having problem playing youtube video, dont press the screen to make it go full screen if u're browsing PC version youtube it's bugged, you can go full screen if u playing mobile youtube version.... allow it to auto play before u touch anything if u're browsing PC version. that should solve the prob....

Anyone wan to try iphone slide to unlock phone?
try this   (trial)