In order to hard reset a ZTE Grand X LTE T82, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
ZTE Grand X LTE T82 device will be brought back to the default configuration of a brand new device.
1. Power down the phone by pressing and holding the Power button.
2. Next, press and hold the Volume Down + Volume Up and Power buttons simultaneously.
3. Press Menu button when a small white box with letters appears on-screen. You will enter Recovery Mode.
4. In it, select Wipe Data/Factory Reset. Do so by using Volume buttons to scroll through the options and Power button to select operation.
5. Continue by selecting Yes and Reboot System Now.
6. Done!