Tutorial how to get Android Phone into recovery mode. And Factory Reset Device.
What is Recovery mode on Android ? Recovery mode is a mode which is used for flashing ROM / kernel / CWM flashable zip without using odin, wipe data / factory reset, backup and restore ROM, wipe the Dalvik cache, and wipe battery stat. So that recovery can be used in an optimal fashion, it is advisable to install Clockwork Mod is already incorporated in the kernel used for rooting.