Samsung J7 NXT aur M10 dono me same Samsung Exynos 7 Octa 7870 chip hai .. par M10 dual volte support krta hai ... sooo Samsung update k through J7 NXT me dual volte deskta tha ... aur mra J2 old model me pehle Volte nahi tha .. update k through hi Volte mila tha ...
