Recently I purchased a new smartphone reddi note 4 it has good proseser 4GB Ram 64GB internal memory I heard lots of positive comment on it but when I acully used that I seen different side of that phon when we used it for more than 1 or 1.30 hours it get started worm and it it screen hang and other problem get started only side button are work we only do it is power off that mobile and again restart it and after that another problem is it mobile data button are no work properly many time we of the data but it continusly use it and tire is one more problem when we try to downlode something it start but not shown in our mobile phonFriend please make shore if you seen any thing performance by your own eye than beaver ti other wise ot all fack thing are going in the market thankyou