How to factory reset ALLCALL S1? How to wipe all data in ALLCALL S1? How to bypass screen lock in ALLCALL S1? How to restore defaults in ALLCALL S1?
The following tutorial shows all method of master reset ALLCALL S1. Check out how to accomplish hard reset by hardware keys and Android 8.1 Oreo settings. As a result your ALLCALL S1 will be as new and your MediaTek MT6580A core will run faster.