What adding an eSIM to your iPhone actually does
Adding an eSIM to your iPhone connects a mobile data plan to your device without requiring a physical SIM card. Once activated, it enables internet access, calls, and text messaging based on your carrier’s plan.
What you need to do before adding an eSIM to your iPhone
Before adding an eSIM, make sure your iPhone supports eSIMs. Most iPhone XS, iPhone XR, and newer models are compatible, although support can vary depending on your country, region, and carrier. You can check compatibility by tapping “Settings” > “General” > “About” and looking for an available eSIM section or by confirming with your network provider.
It’s also a good idea to update your iPhone to the latest version of iOS before starting, as software updates often include improvements for eSIM activation. Ensure you have a stable internet connection, preferably Wi-Fi, and have your activation details ready, such as a QR code or manual activation information provided by your carrier or eSIM provider.
The steps to add an eSIM on iPhone
The steps below cover the key stages of adding and activating an eSIM on your iPhone.
Step 1: Open the eSIM setup screen
You can start setting up an eSIM in various different ways. If you’re using Saily, you usually begin the installation directly within the app by following the guided setup process.
Step 2: Add your eSIM using a QR code
Most travel eSIM providers and mobile carriers provide a QR code to activate your eSIM.
Tap “Use QR code.”
Scan the QR code provided by your carrier.
Follow the on-screen prompts.
Tap “Continue” to activate the plan.
Activation may take a few minutes to complete, so don’t worry if the installation isn’t instant.
Step 3: Add an eSIM manually
Some carriers provide manual activation details instead of a QR code. To use them:
Open “Settings.”
Tap “Cellular.”
Tap “Add eSIM.”
Tap “Enter details manually.”
You’ll typically need to enter information such as the SM-DP+ address and an activation code supplied by your carrier or eSIM provider. You can also delete an eSIM from an iPhone in the same section.
Step 4: Add an eSIM directly through the Saily app
If you’re using Saily, open the app and sign in to your account. Select the eSIM you’ve purchased and follow the installation instructions. When prompted, allow the app to open your iPhone’s eSIM settings and approve the installation. Once the eSIM has been added, return to the Saily app to complete activation if required.
Step 5: Label your eSIM plan
Giving your eSIM a clear name makes it easier to manage if you use more than one SIM.
Select your new eSIM.
Tap “Cellular plan label.”
Rename it (for example, “Travel,” “Work,” or “Saily”).
Step 6: Choose your default voice and data lines
After installation, your iPhone will ask which SIM you want to use for calls, SMS, and mobile data. In most cases, it’s best to keep your primary SIM as the default for calls and SMS, while using your travel eSIM as the default mobile data line when you’re abroad.
Common problems when adding an eSIM on an iPhone and how to troubleshoot them
Most eSIM setup issues are easy to fix and often involve simple problems with the eSIM’s settings configuration on your iPhone. Below are the most common problems users encounter and how to resolve them.
QR code not working
A QR code may not work if it has already been used, has expired, or wasn’t scanned correctly. Try scanning it again while connected to a stable internet connection. If it still doesn’t work, contact your eSIM provider to request a new activation code.
eSIM stuck on activating
eSIM activation can sometimes take several minutes to complete. Restart your iPhone and check that you’re connected to a reliable Wi-Fi network before trying again. If activation remains stuck, contact your carrier for assistance.
Mobile data not working after setup
This is often caused by the wrong Cellular Data line being selected or incorrect roaming settings. Go to “Settings” > “Cellular” and confirm the correct eSIM is selected for mobile data, then make sure data roaming is enabled if you’re traveling. If the issue continues, contact your provider or use their eSIM app for further troubleshooting.
