In order to hard reset a ZTE Score, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
ZTE Score device will be brought back to the default configuration of a brand new device.
1. Turn on the phone.
2. Press and hold the Volume Down, Camera and Power buttons.
3. Wait for the Android logo to pop on-screen. Press Menu button to enter Recovery Mode.
4. A new menu will open. From it, select Wipe Data/Factory Reset using Volume and Power or Home buttons.
5. Continue by selecting the Yes and Reboot System Now options.