[問題] wifi連上但仍是3g
最近手機常常連不上wifi
確定已連上,但仍顯示中華電信3g
http://i.imgur.com/yqnhbGx.jpg
手機是iphone 6s plus
版本是9.1無jb
請問是一定要更新ios嗎?
謝謝
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