To get Superfast 4G LTE, you'll need a LTE compatible device, an LTE SIM and take a MyPlan 3GB (or more) data Bolt-on.
If you don't already have Superfast 4G LTE (if you have, you'll be able to see 'LTE' on the top left hand side of your screen), you'll need to:
Check your iPhone has software version iOS 7.1 or higher. You can check this in your General Settings > Software update.
Visit one of our stores to upgrade your SIM to a new LTE compatible SIM. It's a simple swap.