How to factory reset ZTC ZT-199? How to wipe all data in ZTC ZT-199? How to bypass screen lock in ZTC ZT-199? How to restore defaults in ZTC ZT-199?
The following tutorial shows all method of master reset ZTC ZT-199. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your ZTC ZT-199 will be as new and your core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.