Samsung Recently launch a low budget smartphone GALAXY J2. The is really good. This is samsungs cheapest 4G phone. Samsung also launch his UDS feature with this smartphone.
But all new Samsung Galaxy J2 customers facing Network Problem. Customers are facing problem on call and data. I dont know How Samsung can done this type of Mistake.. But dont worry you have purchased a Samsung Smartphone. Samsung is really sensitive for their Customers. Dont try think so that Samsung replace your phone with new one. Samsung is smart also.
So we are coming On topic. To solve this Network issue you have to update your Galaxy J2.Samsung provide a 65MB update to solve Galaxy J2 network issue.
To update your Device Go to
Setting-- About device-- Software update-- Update
After follow these step your device will download a 65MB file. And after this you will see a install option as well info about update. So click on Install Your device will be rebooted and your problem will be fixed.