In order to hard reset a ZTE Blade V, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
ZTE Blade V device will be brought back to the default configuration of a brand new device.
1. Power down the phone.
2. Press and hold the Volume Down + Volume Up + Power buttons.
3. A menu will open. From it, select Wipe Data/Factory Reset option. Use Volume buttons to scroll to the option and Power button to select it.
4. Continue by selecting Yes and Reboot System Now.
5. Your phone should now reset and restart. Yaay, you have completed the Hard Reset process.