I purchased samsung galaxy j7, I was used this phone few months it started to act up it froze lots when I was started to tap on the screen it doesn’t responds, I cannot get receptions even the most powerful wifi hotspot, It wouldnot receive wifi signals consistently, It is very sporadic.I have tried everything uninstalling apps and reinstalling, turned the unit off and on.and I am facing problem in the headset when I am dailing from log list in some of the nos mobile is restarting I certainly do not recomend this mobile