Android recovery mode guide.

In Android devices, Recovery is an Android-based, lightweight run time environment separate from and parallel to the main Android operating system. Recovery's original purpose was:

• to apply software updates to the device, e.g. OTA updates, and

• to erase user data and cache, e.g. for troubleshooting or preparing the device for resale (factory reset).

Recovery is stored in a disk partition separate from the main Android partitions (boot/kernel, root/system). It contains its own Linux kernel, separate from the kernel of the main Android system.

To do so.

1. Turn off device completely.
2. hold volume up + home + power buttom all together.
3. wait for device to turn on.
4. here is ur recovery mode.