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Apple emperor helps. Why can't I make a phone call and send a text message when I insert a mobile card?

See if yours is this question:

According to Apple's official verification, there is no problem with the hardware of the iphone 4S. The main reason for the above problems is that the version of ios 5.0. 1 is not compatible with a few SIM cards (especially some mobile cards). This situation is normal, and it can be solved after upgrading ios 5.0. 1 to the perfect version. China Mobile is also actively seeking a more perfect solution. I believe this problem will be solved soon.

In order to avoid this kind of problem, iphone 4S users with IOS 5.0 version are advised not to upgrade IOS 5. 0. 1 version for the time being. For iphone 4S users with such problems, there are the following solutions:

Replace a new SIM card in the mobile business hall.

Replace Unicom card for use.

Rewrite the number to the mobile company to solve it.