Before jailbreaking, you need a mobile phone network, preferably wireless.

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Log in to www.jailbreakme.com with safari, and the sliding screen will automatically display some related jailbreak files.

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Before installing jailbreak software, you must install an AppSync patch, call Cydia-click Manage below-then click Edit in the upper right corner-and then click Add on the left. A dialog box will appear. Enter http://cydia.hacker.us in the dialog box, and then click Add Source. After completing this step, select Appaync fpr os 4.0 in the installed source file, and then click Hackulo.us to enter the software list.

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Upgrade the device and verify the firmware using RedSnow. (win7 and Vista want to set Red Snow to compatibility mode) Select the option of installing Cydia function.

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After completing the above steps, Hong Xue will prompt you to connect the device to the computer, then turn off the power and prepare to enter DFU mode. If you fail, you can try several times. Make sure that the device is connected to the computer and in DFU mode. Then press and hold the power button for 3 seconds; Press and hold the power key +Home key 10 second at the same time; Release the power button and continue to press and hold the Home button 15 seconds. Then wait for the prison break to be completed. If you see a cute pineapple head on the screen, it means that the prison break is completed.