If you have a single sim phone you can make it duel sim phone just under 70$.Your phone will be upgraded to duel sim. In this process your phone will not be opened or repaired. "Its gurrenty" 

i am having a trouble . a little one but big. first my always on display was not working. now ther is a black shade at full brigtness left at (10 o clock.)#location .. purple at low brigtness. how can i fix it?

My always on display is not working. Samsung galaxy j7 pro.

Any new update for samsung j7 pro.