Hard Reset ZTT W398B

How to factory reset ZTT W398B? How to wipe all data in ZTT W398B? How to bypass screen lock in ZTT W398B? How to restore defaults in ZTT W398B?

The following tutorial shows all method of master reset ZTT W398B. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your ZTT W398B will be as new and your   core will run faster.

First method:

  1. Check your cell phone that if is off.
  2. Then turn on the devie
    Hard Reset ZTT W398B
  3. Select emergency dial, and type this: *983*22387#
  4. Select option: Erase Everything.
  5. That's all.

Help! This doesn't work