How to factory reset ZHONGYI ZY688? How to wipe all data in ZHONGYI ZY688? How to bypass screen lock in ZHONGYI ZY688? How to restore defaults in ZHONGYI ZY688?
The following tutorial shows all method of master reset ZHONGYI ZY688. Check out how to accomplish hard reset by hardware keys and Vendor settings. As a result your ZHONGYI ZY688 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.