I am using Samsung J7, Model number is SM-J710FN My problem with my mobile is whener Am using the mobile data after some time a notification with the name "Data usage warning" that is "ULTRA DATA SAVING MODE" is getting displayed in the notification bar and it is not going off for a long time that I can't guess. After a long time it is automatically going off. Why it is always showing in the notifications bar? What is the solution? Any help would be appreciated. Thanks.