Fabulous phone and very handy feeling awesome in using for the first time.Its very comfortable.loved the smart glow feature and hangs very rarely.love the phone Samsung J2.The only problem is that I was getting auto restart problem too often today.then I enabled all disabled apps.that seems to fix it.if it not fixes your problem then a factory reset will do.remember to backup your data first on external media like pen drive, memory card or pc and after factory reset do not disable any app.