中華電信2G轉3G及Iphone4s - Yahoo!奇摩知識+ iphone的sim卡只能用3G的sim卡嗎? >>用3G的上網速度會比較快啊. 我要換成3G 的sim卡是要在我去拿iphone4s之前辦好嗎? >>建議這樣會比較好。
iPhone 4S - 3G / 2G settings?: Apple Support Communities 14 Oct 2011 ... just got my iPhone 4S home. set it all up ok. 3G in my property is not so good so with the 3GS I used to turn 3G off. I don't have the option to do ...
