Iphone4s jailbreaks, how to keep SMS and address book after upgrading ios6 system?

Download itools on the PC side, the icon is rabbit's, and there is a backup. If you want to escape from prison after upgrading to 6.0, you'd better use DFU mode.

The operation method is very simple, according to the following steps,

Details are as follows:

1, back up all your information. Tools can use itools. Including: photo albums, SMS /QQ/ WeChat chat records, game files, video music, memos and so on.

2. Download the official IPSW file 6. 1 corresponding to Apple devices for future use.

3. Put your Apple device in DFU mode (see the figure below for details).

4. Install the latest version of iTunes, reserve some free space on the C drive, and open iTunes, which will prompt you to find the Apple device that needs to be restored.

5. Shift+ Restore button and select the downloaded IPSW file.

6, success!

You can use this method if you don't intend to escape from prison. The system upgraded by this method is the cleanest and the signal is stable. If it is convenient, you can directly upgrade your mobile phone to the wireless network. I hope you can accept my suggestion.