iphone only use WIFI上網,how?

得. 你係settings -> general -> network -> cellular data
亂咁打野入去, 包括 apn, user name , password都亂鬼咁打
包你3g 上網同2g 上網都上唔到

2009-01-23 16:49:21 補充：
或者 你部機jailbreak 左後 安sb settings, 可以完全將gprs, edge 都關鬼左佢

just go to setting and open wifi, then you will choose the correct wifi and give the pw to access the internet.