+-+-+-大家的Iphone4手机QQ还正常吗？3g网连不上，Wifi倒是可以连上+-+-+-

刷完新系统就变成的那样，我的iphone也是啊

don't download any mobile phone certificates and install them into your iphone, otherwise you can't use QQ or use the web explorer. Sometimes QQ will install some certificate verification automatically into your iphone which will disable your QQ.