... Unlocked Phone JIAYU G4 Highlights:Type: Smart phoneColor: WhiteOS: Android 4.1CPU: MTK6589 Cortex A7 quad core 1.2GHzGPU: ... Excel, PPT E-book format: TXTLive wallpaper support: Yes Games: Android APK and JavaLanguagesEnglish, French, Spanish, German, Portuguese, Russian, Dutch ... , modding with custom ROMs, rooting or flashing the Android device with other firmware will automatically void the device' ...