My SIM replacement hasn’t worked
It can take up to 24 hours to activate a SIM card or an eSIM.
If you've just upgraded to a new device, and your old SIM still fits, switch back to your old SIM card – you don't need to use the new SIM we've just sent you.
What kind of SIM do you have?
If you reported your device lost or stolen
Remove any bars on your account – your device might still be blocked
If you're joining from another network
Check if your device is locked – if your device was used on another network, you need to contact your previous provider to unlock it