From the Settings app, tap Network & internet.
Tap Mobile network.
Tap Data usage.
Tap the Settings cog icon.
From this screen, you can limit your data usage and set up alerts for when you're reaching your data usage limits for the current month.
Tap or slide the Set data warning switch to ON.
Tap Data warning.
Tap the Data warning field.
Enter your preferred data usage warning.
Tap SET.
Tap or slide the Set data limit switch to ON.
Tap OK.
Tap Data limit.
Tap the Data limit field.
Enter your preferred data limit.
Tap SET.
You can also turn off mobile data when you're in areas where you don't want to use any data.
Tap App data usage cycle.
Select your preferred data usage cycle reset date.
We recommend you match this date to the date your billing cycle starts to more accurately manage your data.
Tap SET.
You've completed the steps!
