firmware samsung galaxy grand duos

CosmicCM is a custom firmware aka ROM for galaxy grand duos. It is built from Android Open Source Project (AOSP) with additional features, performance and battery life improvements. Base : KitKat 4.4.4 : FULL AOSP BASE FROM SOURCE. Thanks to: AOSP Cyanogenmod AOKP pawitp MWisBest xenon92 samsung galaxy a53 5g