Hard Reset ZTE Max

First method:

1. First of all turn off your device by holding down the Power key for a short while.
2. After that press and hold Volume Down + Power button for a few seconds.
3. You should relese the Power key when the phone vibrates.
4. Keep holding the Volume Down button until the Android Image appears on the screen.
5. Hold down the Volume Up key for a short while to enter Recovery Mode.
6. Choose "wipe data/factory reset" by using Volume buttons to navigate and Power button to confirm.
7. Select "Yes--delete all user data". Use Volume Down button to scroll and Power key to select.
8. To restart the phone select "reboot system now".
9. Good job! The hard reset has just been performed.

Second method:

1. Firstly press the Power button, until your device is on.
2. From the home screen open Menu and choose Settings.
3. After that select Backup&Reset and tap Factory data reset.
4. Choose Reset phone and select Erase everything to begin hard reset operation.

Third method:

1. The device must be power off, so press and hold Power button.
2. Then hold down the Power button to turn on the phone.
3. Choose emergency dial, and type the following number: *983*22387#
4. Then from the menu in front of you choose Erase Everything.
5. Done! Now your phone will restart.

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