How to factory reset KOOBEE S209? How to wipe all data in KOOBEE S209? How to bypass screen lock in KOOBEE S209? How to restore defaults in KOOBEE S209?
The following tutorial shows all method of master reset KOOBEE S209. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your KOOBEE S209 will be as new and your MediaTek MT6750 core will run faster.