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How to restore the Apple 4s SMS icon without it?

Because the mobile phone jailbreak deleted the information, the system can only be restored through itunes.

1. Install iTunes. Start iTunes.

2. Insert the iPhone, press and hold the power button and the Home button 10 second, wait for the iPhone to turn black (according to experience, it is about 0.5- 1 second after the black screen), release the power button and hold it down until iTunes recognizes the iPhone.

3. At this time, Windows will first discover some new hardware and drive it by itself. After iTunes automatically recognizes the iPhone, a prompt box will pop up. "iTunes has detected that the iPhone is in recovery mode. You must restore this iPhone and use it with iTunes. " Click OK at this point.

4. Open itunes, and in the section showing iphone capacity and information, click Restore to start the recovery process.

5. Before displaying the picture of the data cable connection on the iPhone, iTunes will prompt that the firmware recovery is completed.