Hi-sam12345: Goto settings >Tap-Data usage >Review if the option [Mobile data is checked if not-Check it. You'll see another option called [Set mobile Data limit] leave it unchecked unless, you wanto 'Set a limit' in the data, like 500 MB, 1GB,.etc. Applies if you're exceeding the default Data in your plan.
In the same screen, scroll-down until find the App [Software Update] >Tap it +Scrolldown until, you see the option [Restrict background data] if find it checked, Unchecked-unless you wanto [Restrict background Data-No recommended] Turn Off/phone +Re-start it. If no fixed contact-Telus at *611 or <www.telus.com> PS report results to forum.. Bye "v9"