Hard Reset ZTE Blade A813

First method:

  1. At the beginning, turn off the phone by holding the Power button.Hard Reset ZTE Blade A813
  2. Then press and hold PowerVolume Up button.HardReset ZTE Blade A813
  3. When you see Recovery Mode menu release held buttons.Factory Reset ZTE Blade A813
  4. Afterward from the menu choose "Wipe Data/Factory Reset" by using Volume buttons to scroll and Power button to select options.
  5. Confirm the whole operation by tappinng "yes".
  6. Success! The hard reset has just been performed

Second method:

  1. Turn on the phone by using the Power button. Hard Reset ZTE Blade A813
  2. After pressing the Home button go to Settings and then to Backup & reset.
  3. Choose the Factory Data Reset.
  4. Tap Reset Phone
  5. Select Erase Everything if you are sure you want to clear all your data. 
  6. Well done!

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

Help! This doesn't work