Hard Reset ZTE V793 Kis Flex

First method:

1. Power on your device.
   
2. Next dial this code: *983*987#
3. Then your device will reset and reboots.
4. Well done!

Second method:

1. Turn off your handset.
   
2. Now press and hold Volume Up + Power button.
   
3. Release held keys when you see a ZTE icon.
4. Afterwards press the Power button to enter Recovery Mode.
5. Then from this menu choose option "wipe data/factory reset" using Volume buttons to scroll and Home button to confirm.
6. Next select "Yes -- delete user data", and confirm that.
7. After that accept "reboot system now" with Home button.
   
8. Good job!

Third method:

1. Switch on your cell phone.
   
2. Afterwards if you are in Home screen, then press Menu key.
3. Tap Settings -> Privacy -> Factory data reset -> Reset phone -> Erase everything
4. Confirm your choice, and wait until format is done.
    

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.