How to factory reset DOOGEE S55? How to wipe all data in DOOGEE S55? How to bypass screen lock in DOOGEE S55? How to restore defaults in DOOGEE S55?
The following tutorial shows all method of master reset DOOGEE S55. Check out how to accomplish hard reset by hardware keys and Android 8.0 Oreo settings. As a result your DOOGEE S55 will be as new and your MediaTek MT6750T core will run faster.
Doogee Mix Hard Reset Buttons - video