Manually Update Your Carrier Settings
Sometimes, you’ll also need to check if your carrier has a settings update that your iPhone needs to install. Usually, these carrier settings updates will be automatically installed, but you might want to install it if it’s available manually.
First, make sure your iPhone is connected to WiFi. Then follow these steps:
- Launch Settings.
- Go to General.
- Tap on About.
- If there’s an update available, you’ll see an option to update your carrier settings.
You can also watch the version of your carrier settings on your iPhone by scrolling down. It should be next to Carrier.
Keep in mind that if you recently inserted a new SIM card, you’d need to download the carrier settings for your new carrier.