How to factory reset OUKITEL U15S? How to wipe all data in OUKITEL U15S? How to bypass screen lock in OUKITEL U15S? How to restore defaults in OUKITEL U15S?
The following tutorial shows all method of master reset OUKITEL U15S. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your OUKITEL U15S will be as new and your MediaTek MT6750T core will run faster.