ZTE Warp hard reset
1. Turn off your phone.
2. Press and hold VOLUME UP + POWER.
Factory reset / Wipe data

or
You can reset your ZTE device's password: Turn off your phone, then turn it on. Select emergency dial. Input *983*987# in emergency dial-up pad. It will restore factory settings and your personal data will be erased.
1. From the Home screen, press the Menu Key and touch Settings.2 Touch the Privacy
4 Touch Factory data reset.
5 Touch Reset phone.
6 Touch Erase everything.