ZTE Mimosa X hard reset ZTE PF200 reset aka Grand X
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.Enter into recovery menu by using the following key combination.
1. Turn your ZTE android phone off.
2. Press and hold Volume DOWN + POWER keys together.
3. When you see the android press Volume UP and press POWER for a moment.
or if your screen is responding to input
If your phone is responding to screen input, then open Settings from the Applications menu. Tap Backup & reset > Factory data reset click Reset phone and then Erase everything to format your phone.
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.