• With all unlocked devices, you must always make sure your device has proper access to the internet by making sure your APN (Access Point Name) settings are correct. To access the APN settings on most devices you can go to Settings > All (tab) >… More Cellular Networks > Access Point Names.
  • Only your service provider has access to the correct APN settings.
  • Be sure to set APN Type as default,mms,wap for AT&T (and AT&T based carriers) or default,mms,supl for T-Mobile (and T-Mobile based carriers). For all other carriers please ask your service provider what the proper APN type setting may be.
  • Be sure you have mobile data enabled turned on by going to Settings > Mobile data and ensuring that the Mobile Data switch is turned on.