1. General official recovery will have the option to apply Sdcard:update.zip (Brush ROM upgrade package)
Android System Recovery <3e>:
Rebottsystem now: Reboot
Apply Sdcard:update.zip: Brush ROM Package
wipe data/factory Reset: Restore Factory value
Wipe Cache partition: Clearing partition caching
Apply Sdcard:update.zip is the option of the Brush ROM upgrade package, if you want to brush the machine (like the computer on the reload system) can be downloaded online ROM package renamed to Update.zip, and then through the volume plus subtraction key to choose Apply SDcard: The Update.zip option can be brushed into the downloaded ROM package (equivalent to reloading a system).
2. Brush machine
When you turn on the Android phone, press (House key + "Volume + key" and power-on key) to enter the recovery mode of the Android system. Apply Sdcard:update.zip appears here, unplug the battery to exit this interface. If you see the Android system Recovery <3e> words in the first article, your recovery is the official recovery. If the brush machine is best to brush into the third party recovery, so the function will be more powerful, brush machine more convenient.