How to factory reset NOMI Sigma? How to wipe all data in NOMI Sigma? How to bypass screen lock in NOMI Sigma? How to restore defaults in NOMI Sigma?
The following tutorial shows all method of master reset NOMI Sigma. Check out how to accomplish hard reset by hardware keys and Android 4.4 KitKat settings. As a result your NOMI Sigma will be as new and your MediaTek core will run faster.