Why can I call the internet after my American version of IPhone4S is plugged in with a mobile card? Why can't you send text messages?

First, it may be a locked version of the US version, which needs to be unlocked at some maintenance points;

Second, it may be stuck by someone's built-in card. (One way to identify the card machine: The easiest way to check whether it is a card machine is to remove the sim card holder and check the card holder. There will be a chip on the card holder, which is the card machine. If there is a built-in card sticker, it can only be used as an alarm clock, depending on the time.

IPhone 4S is a touch-screen smart phone launched by Apple, which is the fifth generation product of IPhone. At 20 1 1 Beijing time, this new generation iPhone running iOS 5 system was released at the Let's talk iPhone new product launch conference held in California, USA.

IPhone 4s has been greatly improved in hardware and software, and the biggest highlight is the new siri intelligent voice assistant and iCloud cloud service. In terms of hardware, it is equipped with Apple A5 dual-core processor, and the front is equipped with a 3.5-inch IPS glass hard screen with a resolution of 960×640 pixels, and the pixel of the back-illuminated lens is increased to 8 million.

IPhone 4s comes in black and white. 16GB two-year contract 198 USD, 32GB 299 USD and 64GB 399 USD. There are seven countries and regions included in the first batch. By the end of February, 20 1 1, 65438+,iPhone 4S had been sold in 100 countries and regions.

On the morning of September, 2065 1 1, Beijing time, Apple held an autumn product launch conference in Cupertino, California, USA. IPhone 5s/5c was released, and then iPhone 4S and IPhone 5 were gradually discontinued.