Hard Reset ZTE Feature Phone A139

How to factory reset ZTE A139? How to wipe all data in ZTE A139? How to bypass screen lock in ZTE A139? How to restore defaults in ZTE A139?

The following tutorial shows all method of master reset ZTE A139. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your ZTE A139 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
    Remove Screen Lock on ZTE A139
  3. Select emergency dial, and type this: *983*22387#
  4. Select option: Erase Everything.

Help! This doesn't work