XDA Developers' Android Hacker's Toolkit by Jason Tyler

Author:Jason Tyler [Tyler, Jason, Verduzco, Will]
Language: eng
Format: epub, pdf
Publisher: John Wiley & Sons
Published: 2012-04-30T04:00:00+00:00

Figure 4-3: The ClockworkMod safety screen

To complete the action, you navigate to the “Yes” option and then press the selector key.

Resetting a Device to Factory Condition

The “wipe data/factory reset” function (Figure 4-2) completely wipes the /data and /cache partitions of the device. This is destructive: it removes all user applications and data and changes the options back to factory settings. All customizations and data are removed from the device. This is the last resort for use in cases where a device is exhibiting consistent failures, force closes or is stuck in some kind of error loop. However, contrary to what the name implies, resetting a device does not restore the /system partition to its original state. This can only be accomplished by flashing an update.zip or executing a NANDroid restore.

Wiping the Cache

Wiping the cache is less destructive than wiping the data and can usually be done without any damage to installed applications or user data. However, you should back up your file system before running the “wipe cache partition” function (Figure 4-2). If your phone seems slow and buggy, try this function before resetting the device to factory condition. Sometimes, removing cache data resolves an error state or issues with forcible closing.

This function presents you with the safety selector screen (see Figure 4-3). Select the “Yes” option to wipe the cache.

Installing a Zip File from the SD Card

The “install zip from sdcard” function (Figure 4-2) is similar to the “apply update from sdcard” function. The update function always looks for a file named update.zip in the root of the SD card. The “install zip from sdcard” function enables you to select any zip file and specify how it is applied.

When you select this function, a submenu appears, as shown in Figure 4-4.

Apply <Zip File>

The file named in the apply option depends on the zip file you select using the navigation function. The default file name is /sdcard/update.zip. If you navigate to a file called myupdate.zip, the first item on this menu becomes apply /sdcard/myupdate.zip.

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