2 hours ago
2 hours ago - last edited 2 hours ago
First make sure that your mobile data is working ok.
To ensure that your APN settings are configured correctly text "APN" to 50048 and follow the instructions here:
Then check that you can use mobile data to browse or use connected apps.
Then have a look at this key post - in particular the section titled "A note about personal hotspot setup on iPhones":
If you need to contact 48 support about this then see the links in my signature below.