1, the basic principle of jailbreaking is to modify the structure of the file system, so that the system partition is loaded as a user-readable partition, and at the same time, some boot files need to be added to the user partition.

2. When erasing data, directly erase the user partition. The boot file is gone, and the modified system can't start and crash. In fact, you can restore the factory settings accurately, but don't choose to erase the data to restore the factory settings, otherwise it will be a white apple.

Extended data

White Apple refers to the phenomenon that iOS devices have software and hardware failures and get stuck in the startup screen, which generally occurs in plug-in conflicts or system bugs after jailbreak. From a professional point of view, White Apple mainly refers to the failure of system component call execution after the system of iPhone is started, which leads to the failure of system interface.

When you start or log off your iOS device (iPhone, iPod? Touch, iPad, iPad mini), the startup interface or logout interface of the system stays in a white apple, and the iOS device cannot achieve any operation, which is called a white apple.

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