Samsung Galaxy S21 Ultra 5G Device Help & How-To Guides
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Accessing Mobile Network Settings
When traveling internationally, your device settings may require an update to conserve data and minimize unwanted fees. Learn how to change roaming settings on your device ahead of your next international trip, including how to enable and disable roaming. Also learn how to view the status of your Wi-Fi Pod's Internet connection.
ExploreActivating Wi-Fi calling
You can use Wi-Fi calling to make and receive calls in areas with limited or no cellular connectivity. If this option is not present on your device, or cannot be enabled, your carrier's network or your specific cellular plan might not support this feature.
ExploreSetting up your second cellular plan with eSIM
Adding a secondary eSIM alongside a physical SIM or eSIM allows you to quickly switch between two cellular plans and/or carriers for voice or data.
ExploreSetting up an eSIM with a push notification
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.
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