You might need to reenter your settings after an iOS update. If you edit your APN settings before updating iOS, your settings will reset to the default values. Unless you're using a configuration profile, updating iOS resets any changes made to your APN settings. Depending on your carrier, you might not be able to change the cellular data settings. If your carrier needs a different APN setting, you might be able to use a configuration profile with the correct setting. Step 5: Tap the gray x next to the current name, then enter the new name. To change your settings, tap each field and enter the details from your carrier. Note that the name that is displayed next to it is the current iPhone name, which is also the current Personal Hotspot name. If your device doesn't have either option, contact your carrier.
Settings > Mobile Data > Mobile Data Options > Mobile Data Network.Settings > Cellular > Cellular Data Options > Cellular Network.If your carrier allows it, you can view your APN settings in one of the following locations: Contact your carrier to verify the correct APN settings. Don't edit the APN unless directed by your carrier or mobile device administrator. If you enter incorrect APN settings, you might lose cellular data connectivity and receive additional charges.
