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iphone 4s, lost signal in buildings with China Mobile Ltd. network

My iphone 4s, black, 16G, 9A406, with China Mobile Ltd. network, would lose signal when I was in the office building, and the signal is very good when outside the building.

Is there any explantaion for this?

iPhone 4S, Windows 7

Posted on Feb 17, 2012 5:04 PM

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iphone 4s, lost signal in buildings with China Mobile Ltd. network

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