It is Very important to have the Stock and Official Updates for your Samsung Galaxy Win Pro Duos SM-G3812|SM-G3812B, Below you can get the one that suits to your Smartphone, Many versions, Countries, And Languages are available too, All These are Stock Softwares from this Source.
Free Download Links for Samsung Galaxy Win Pro Duos SM-G3812|SM-G3812B Softwares:
G3812ZNUANE1_CHUANE1_China_4.2.2.zip - 718.3 MB
G3812BVJUANA7_ZTMANA7_Brazil_TIM_4.2.2.zip - 875.2 MB
G3812BVJUANC2_ZTMANC1_Brazil_TIM_4.2.2.zip - 878.9 MB
