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No complicated checks needed. The AirZlink app features a built-in smart detection tool that automatically identifies and instantly confirms your device's eSIM compatibility, guiding you through the next steps.

An eSIM (Embedded SIM) is a digital SIM card built directly into your device. Unlike traditional physical SIM cards that require insertion and removal, an eSIM allows you to download and activate a data plan by scanning a QR code provided by the carrier or directly through an app, eliminating the need to swap physical SIM cards.

You can search for "AirZlink eSIM" in the APP Store or Google Play to download the APP.

Once you have installed the eSIM on your device, you can use it by following these steps:

1. Locate your installed eSIM and ensure the eSIM switch is turned ON.

iOS: Settings > Cellular > SIMs

Android (e.g., Samsung): Settings > Connections > SIM Manager

2. Confirm that Mobile Data is set to use this eSIM.

iOS: Settings > Cellular > Cellular Data

Android (e.g., Samsung): Settings > Connections > SIM Manager > Preferred SIMs > Mobile data

3. Confirm that Data Roaming is enabled for this eSIM.

iOS: Settings > Cellular > SIMs > Select your current eSIM > Data Roaming

Android (e.g., Samsung): Settings > Connections > Mobile Networks > Data Roaming

4. To avoid accidental use of your primary SIM's roaming data, we recommend turning off 'Allow Cellular Data Switching'.

iOS: Settings > Cellular > Cellular Data > Allow Cellular Data Switching

Android (e.g., Samsung): Settings > Connections > SIM Manager > Auto data switching

For installation instructions, please refer to:

How to install and set up eSIM on iOS/Android devices?

There could be several reasons why your eSIM is not working properly. Troubleshooting a few steps can help identify the issue and get you connected quickly.

Where can my eSIM be used?

Please remember that your eSIM can only be used within its coverage area. For example, a France eSIM only works in France. If you install it outside the coverage area, you need to reach the coverage area to connect.

How to identify why your eSIM is not working

If you are in the coverage area but cannot use the eSIM, follow these steps.

A) Ensure your eSIM is installed correctly

If installed correctly, you should see the eSIM in your device's SIM settings. If possible, check the app for a success message.

Be sure to give your eSIM a unique label to easily identify it.

If you don't see the eSIM in settings, please read: Why can't I find my installed eSIM on my device?

B) Ensure you have followed connection steps

Once installed, you need to adjust a few settings to connect. Steps vary by device but always include:

1) Ensure eSIM is ON

2) Ensure eSIM is selected for Data

For eSIMs with calls/SMS, ensure it's selected for those too.

3) Ensure 'Airplane Mode' is OFF

This is a common reason for connection failure. Airplane mode disables all wireless communication. Turn it off and wait a few seconds for the device to search for networks.

4) Turn on Data Roaming

Some eSIMs require data roaming. Check 'Access Data' instructions.

For iOS, you can turn roaming on for individual SIMs. Ensure it's OFF for your primary SIM to avoid charges.

For Android, roaming often applies to all active SIMs. Ensure it's OFF for your primary SIM.

C) Manually select network

Your eSIM should connect to at least one network in the area. Usually, it connects to the strongest one automatically. Sometimes it might pick the wrong one.

You can find the supported networks in your plan details and manually select one.

D) Temporarily turn off other SIM cards

If your device supports multiple active SIMs, temporarily turn off others that might interfere.

E) Adjust network mode

Sometimes switching network modes helps. If trying 5G, switch to 4G/LTE or 3G.

iOS: Settings > Cellular > Select SIM > Voice & Data > Adjust mode

Android: Settings > Connections > Mobile Networks > Select eSIM > Adjust mode

Once working, you can try switching back to your preferred mode.

F) Restart device

If all else fails, restart your device. This refreshes the connection state.

G) Check signal coverage

If nothing works, signal strength in your area might be too weak.

If you still have questions, contact our 24/7 support team.

No, eSIMs generally only support one-time installation!

Therefore, we strongly recommend that you do not remove any eSIM you still intend to use!

After removing an eSIM from your device, you may encounter errors when trying to download it again. You will need to purchase, install, and activate a new eSIM to access the mobile network at your destination.

When you are not using an eSIM, we recommend temporarily disabling it. Please note that disabling an eSIM does not pause the validity of your plan.

How to disable eSIM on your device:

Disable eSIM on iOS:

1. iOS Path: Settings > Cellular > SIMs.

2. Scroll and select the relevant eSIM.

3. Toggle off 'Turn On This Line'.

Disable eSIM on Android:

1. Android Path: Settings > Connections.

2. Tap 'SIM Manager' and select the relevant eSIM.

3. Toggle off the eSIM.

Remember, disabling an eSIM does not permanently deactivate it. Your eSIM will be in a dormant state until you choose to turn it back on.

If your device was purchased through a mobile network provider or carrier, it might be locked to that network. This means your provider has imposed restrictions preventing you from connecting to other networks.

If your device is locked, you cannot install an eSIM. To use an eSIM, please contact your mobile network provider or carrier to unlock your device.

If your device was recently unlocked, your carrier might disable eSIM support for a period of time for security reasons. In these cases, please contact your provider to override the security settings.

If you have any questions, please contact our support team. We are happy to help.

AirZlink eSIM itself does not restrict your access to any websites or apps; you can use all services normally.

However, please note that AirZlink eSIM may provide local network access via data roaming in some countries and regions. Some apps or websites may restrict network connections in roaming state based on their own policies, resulting in temporary inaccessibility.

If you encounter specific apps or websites that cannot be opened during use, we recommend contacting the customer support of that app or website for further assistance.

This will not have any impact. You will not connect to the local mobile network in unsupported countries/regions, nor will you be able to use any mobile network.

For example: If you bought a UK plan and pass through Germany, you will not be able to connect to the mobile network via this eSIM in Germany, nor use any data or services included in the plan.

Email support@airzlink.com with your order number within 60 days. If your eSIM couldn't be installed or activated due to a technical issue on our side, or your device turns out to be incompatible — and you haven't used any data — you'll get a full refund to your original payment method (not store credit). See our full Refund Policy for details.