Vodafone Smart N9 User Manual

Hi Laurence. It's on by default. If you don't have 4g coverage on your current location, it automatically changes to what's available. If you are pertaining to how to open data, simply go to Settings -> Mobile data -> tap the slider beside mobile data or pull down the quick action bar and tap Data.

Hi Matthew. Have you tried factory resetting your phone? Open Settings -> Reset options -> Erase all data (factory reset). Keep in mind that doing this will delete all the contents on your phone. Also, do you notice any random touches on the screen or do you have an app for emergency purposes?