How do I enable 4G LTE on my iPhone or iPad?

Your iPhone or iPad must be running iOS 8 or later. To enable LTE on your iOS device:

1. Go to Settings
2. Go to Cellular
3. Ensure that the Enable LTE switch is on

If the above steps do not work, you may want to try using the APN from our MMS settings:

1. Insert the Roam SIM into your device
2. Select Settings
3. Select Cellular
4. Select Cellular Data Network
5. Under the Cellular Data section, change the APN to the word “wholesale” (leave Username and Password blank)
6. Under the MMS section, change the APN to the word “wholesale” and enter http://wholesale.mmsmvno.com/mms/wapenc under MMSC
7. Save the settings by going back to the last menu
8. Restart your phone

Also see: What data speeds can I expect to get?