This firmware is only for:
– V891 dual system Remix OS firmware (only for V5 version)
– V919 3G Air DualOS 32GB_remixOS_V1.0.5_V3 (only applies to 32GB V3 version)
– V919 3G Air DualOS 64GB_remixOS_V1.0.5_V3 (only applies to 64GB V3 version)
This might delete Windows 10, so be very, very careful.