An eSIM (embedded SIM) is a digital alternative to a physical SIM card that lets you access mobile networks without using a removable chip. A global eSIM is especially useful when traveling abroad, as it allows you to activate data plans across different countries from your device. In some cases, eSIM activation may fail due to device compatibility issues, installation errors, or connectivity problems. In this guide, you can learn what happens when an eSIM does not activate, why it occurs, and how you can resolve it.

What Does “eSIM Not Activating” Mean?

If your eSIM is not activating, it means your phone is unable to complete the connection to a mobile network using the eSIM profile. This issue may appear as “No Service,” blank signal bars, or the eSIM plan missing from your device settings. It typically indicates that the eSIM is present but not yet functional on the network.

Why Your eSIM is Not Activating?

Several factors can prevent your eSIM from activating correctly. Most of the time, the problem comes down to device settings, internet access during installation, or plan restrictions. Identifying the exact cause helps you apply the right fix quickly.

How to Fix an eSIM That Won’t Activate

If your eSIM does not activate after installation, you can try a few basic troubleshooting steps. These instructions apply to most devices and providers, though the details may vary slightly. Follow the steps below in order and check if the issue is resolved after each one:

1. Check if your phone supports eSIM and is unlocked: Visit your device manufacturer’s website to confirm eSIM compatibility. Also, make sure your phone is not restricted to a single carrier, as this can block activation.

2. Ensure that you have an active internet connection during setup: Use a reliable Wi-Fi or mobile network when installing the eSIM. Avoid switching connections while the installation is in progress.

3. Remove and reinstall the eSIM profile: On iPhone, go to Settings > Cellular, select your eSIM, and tap Remove Cellular Plan. On Android, go to Settings > Network & Internet > SIMs, tap your eSIM profile, and select the option to delete or remove it. Then reinstall the eSIM using your provider’s QR code or manual entry [1].

4. Restart your phone after reinstalling the eSIM: Restarting your device can help apply network settings correctly. Wait a moment after rebooting to allow the network to connect.

5. Contact your provider if activation still fails: If the problem persists, reach out to your eSIM provider for further support.

Disclaimer: The exact activation steps may vary slightly depending on your phone model, operating system, or eSIM provider. If you are unsure, check your device manual or contact your provider’s support team.

For more information, you can also check out our guides on How to activate eSIM on iPhone and How to activate eSIM on Android.

When to Contact Your eSIM Provider

If you have followed all the recommended steps and your eSIM still does not activate, it may be time to contact your eSIM provider for support. Some issues can only be resolved on the provider’s side, especially if they involve account settings, expired activation links, or technical restrictions:

• Activation link expired: If the QR code or activation method has expired, you may need a new one from your provider.

• Reinstallation needed: If the eSIM profile was removed before activation, your provider might have to reset or resend it.

• Unsupported device or version: Your provider can help verify whether your phone model or operating system version is compatible.

• Account or plan error: Sometimes the mobile data plan may not be linked correctly to your account, and provider support is needed to fix it.

Note: If you're unsure which issue applies to your situation, it's best to contact your provider with details about your device and eSIM setup. This can help them assist you more quickly and accurately.

Using Roamless to Avoid Common eSIM Activation Issues

Some eSIM activation problems occur due to complicated setup steps, device compatibility issues, or unclear installation instructions. Roamless helps reduce these challenges by offering an easy to use app, wide device compatibility, and simple activation options for international use:

• Multiple activation methods: Roamless supports QR code, manual setup, and single click installation(for iPhones running iOS 17.4 or later), so you can choose the method that works best for your device.

• No repeated activation required when traveling: Once installed, the Roamless eSIM continues to work across supported countries without needing to activate it again when you move between destinations.

• Reinstallation options available if needed: If you switch phones or accidentally delete your eSIM, you can reinstall it directly from Roamless app without needing to contact support.

• Upfront compatibility information: The app shows supported devices and country availability before purchase, helping you avoid setup errors.

These features make Roamless a practical travel eSIM option for people looking for a simple and reliable way to use mobile data while abroad.

Frequently Asked Questions

Why is it taking so long to activate my eSIM?

-  Activation delays can happen due to weak internet, server congestion, or background restrictions. Restart your device and try again on a stable Wi-Fi connection. For more information, you can read our post on How Long Does It Take to Activate eSIM.

What should I check before activating an eSIM?

-  Make sure your phone is carrier-unlocked, supports eSIM, and has the latest software version [2]. Also ensure you’re connected to a reliable internet source.

Can an eSIM be activated without the internet?

-  No. Activating an eSIM requires an internet connection to download and register the profile on your device.

Do I need to turn off airplane mode to activate eSIM?

-  Yes, your phone needs an active internet connection, so airplane mode must be turned off during activation.

What to do if eSIM is stuck on activating?

-  If your eSIM remains in “Activating” status, restart your device. If that doesn’t help, delete the eSIM profile and reinstall it using the QR code or manual setup given by your provider.

Can a dual SIM phone block eSIM activation?

-  Rarely. But in some cases, conflicts between physical SIM and eSIM slots may cause issues. Temporarily removing the physical SIM during eSIM setup may help.

Sources

[1] Apple Support. ''About eSIM on iPhone'', March 31, 2025. - https://support.apple.com/en-us/118669

[2] Pixel Phone Help. ''Set up an eSIM'', Accessed July 2025. - https://support.google.com/pixelphone/answer/14853135