How to factory reset ZTE Grand S? How to wipe all data in ZTE Grand S? How to bypass screen lock in ZTE Grand S? How to restore defaults in ZTE Grand S?
The following tutorial shows all method of master reset ZTE Grand S. Check out how to accomplish hard reset by hardware keys and Android 4.1 Jelly Bean settings. As a result your ZTE Grand S will be as new and your Qualcomm Snapdragon S4 Pro APQ8064 core will run faster.