How to factory reset UHAPPY UP620? How to wipe all data in UHAPPY UP620? How to bypass screen lock in UHAPPY UP620? How to restore defaults in UHAPPY UP620?
The following tutorial shows all method of master reset UHAPPY UP620. Check out how to accomplish hard reset by hardware keys and Android 4.4 KitKat settings. As a result your UHAPPY UP620 will be as new and your MediaTek MT6592 core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.