An iPhone's Settings app can be used to manually change the carrier settings.
When carrier setting updates become available, your iPhone will notify you.
For more stories, visit Insider's Tech Reference Library.
Loading... Click to sign up for Insider marketing emails. You also agree to receive partner offers.
You may have noticed a menu for your carrier settings on your iPhone, or a pop-up asking you to update them.
Carrier settings are basically packets of information about your iPhone and the network that you use to ensure connectivity and performance. It is vital to keep your iPhone's data current in order to make it work optimally. Check your carrier settings to verify that they are correct.
You'll be prompted to change your carrier settings when these updates become available.
This can be done manually if you insert a SIM card to your iPhone. It's easy though. Here are the steps.
How to manually change the carrier settings of an iPhone
1. Verify that your iPhone is connected with a Wi Fi or cellular network.
2. 2.Open the Settings app on your phone, tap General, then tap About.
3. Scroll down to Carrier. If a new update is available for your carrier, you will see an option to download it. If you don't have the option to update, you will be presented with the current settings and version number of your carrier. You can access additional information by tapping on the version number.
You will see an update for your carrier settings in the Carrier tab of the About screen. Jennifer Still/Business Insider
Your iPhone's carrier settings must be kept current to ensure that it can communicate with your network properly and efficiently.
You might have problems making calls, sending texts or listening to your voicemail if your settings are out of date. It's worth taking a moment to ensure that your settings are up-to-date. If you are prompted, install any updates.
