My j7 2016s wife is too slow while using xender or share it. it transfer data very slowly. I didnt have any problem while using internet via wifi. only problem is sending or receiving files through xender or shareit. Is there any problem. I am facing problem a.r.t 3g/4g frequent network loss. My j72016 its almost 3months but its always hang. my j7 also have sometimes this diplay problem.PLZ dont buy this Samsung j7 mobile having display flickering is a major problem in this all series of Samsung j7. save your money. Screen Resolution and memory sucks! I agree moto g4 seems much better atleast it work