Have an iPhone 18 Pro Max?
An urgent Apple software update is needed for your phone. Some phones may be unable to complete calls or texts, including to 911. Go to Settings, tap General, and then Software Update.
Resetting your iPhone’s Settings and Network Settings
If you are having trouble connecting to the Internet you may need to reset your network connections. Resetting your network connections will disconnect any Bluetooth devices connected to your device and disconnect your device from any Wi-Fi networks it is connected to.
Setting up a pending eSIM notification (device already set up)
This tutorial walks you through the process of setting up an eSIM on your device using a push notification sent by your carrier. This guide shows you how to accept the notification, download the eSIM profile, and activate your mobile service quickly and securely—without scanning a QR code or manually entering details.