How can I update my iPhone Carrier Settings?

If your carrier pushes a carrier settings update, the iPhone will automatically prompt to install the update. Tap Update when the dialog box appears.

You can also check for a carrier settings update manually. Follow these steps to see if a new carrier settings file is available:

1. Make sure the iPhone is connected to cellular data or Wi-Fi
2. Navigate to Settings -> General -> About
3. Wait a few seconds for a dialog box to appear
4. If nothing happens, there is no carrier settings update available

The current carrier settings version is listed under Settings -> General -> About -> Carrier.