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How to Install and Activate eSIM on iPhone?

Author

Rob Rich

July 7, 2025

eSIM card is one of the latest technological reforms that has contributed to flexible and hassle-free worldwide communication. Users are switching toward eSIM due to its convenience and affordability during international travel. However, users find it challenging to activate eSIM on their iPhone and Android devices.

Thus, the most frequent questions asked are how to install and activate eSIM on your iPhone and how much time it takes to activate. It's pretty simple; you can activate your eSIM via a QR code and manual installation method. It takes almost 5 minutes to activate eSIM on your iPhone. 

In this article, I will go through the detailed steps to set up eSIM on your device.

Steps to Consider Before Activating eSIM

eSIM installation on iPhone devices is a straightforward process. But there are some things you should consider for a successful setup. 

Device Compatibility

Your device should support eSIM technology. Confirm it from your device settings or through the device carrier's official site. If your device is incompatible with eSIM, you can not proceed with activation.

Device Carrier Lock

If your iPhone supports only one network, it means it is locked. You should contact your carrier and ask for assistance to unlock the carrier restriction. 

Note down the eSIM Activation Code 

eSIM carriers like Defy Mobile send the QR code and activation details via email or SMS to the customer. Save the code and other activation details in another device for easy setup. 

Update your iPhone Software

Before eSIM activation, update your iPhone software to the latest iOS version. It helps to avoid the eSIM activation failure and the potential connectivity issues. 

Where to purchase your eSIM? 

There are multiple eSIM card carriers, but finding the best one is overwhelming due to the multiple options, unclear plan details and pricing, and potential connectivity issues. However, a solution stands out here, called Defy Mobile, which offers its services for 200+ countries with easy setup and reliable data connection. Using Defy Mobile eSIM is like an all-in-one package where you find affordability, security, data flexibility, convenience, and connectivity solutions. You can purchase your destination country eSIM from DefyMobile.com. You can download the Defy Mobile app from the Play Store or Apple Store for Android and iOS devices. 

  • Visit the Defy Mobile website.
  • Search your destination country in the search bar.
  • Click the plan, and you will see multiple short and long-term data plans. 
  • Select the suitable plan and add it to the cart. 
  • Then, pay the bills using the listed method. Once payment is made, you will receive your eSIM remotely. 

The carrier will send you the QR code and activation details via SMS and email. 

How to install and activate eSIM on your iPhone? 

It is recommended to install eSIM on your device before your departure; it helps to avoid the hassle of late connectivity. You can install eSIM on your iPhone via QR code and manual method. Make sure your device is connected to a stable internet connection during eSIM installation. 

1. QR Code Setup 

  • Go to your iPhone device Settings.
  • Find the Mobile Service/Cellular section and tap add eSIM.
  • Select the QR code installation method and tap use a QR.
  • Scan the code received from the Defy Mobile carrier.
  • Once the scanning is completed, eSIM will be installed on your device. 
  • Rename your eSIM for easy identification. 

If you are using a dual SIM device, set primary SIM for call and text services and eSIM to use data. 

2. Manual Setup

  • Go to your iPhone Settings.
  • Find the Cellular/Mobile Data and tap to add eSIM.  
  • Select the manual installation method and manually add the activation details to your device settings. Then tap next and continue. 
  • Your eSIM will take a few minutes to install on your iPhone. 

Activate your eSIM

Defy Mobile eSIMs activate automatically once you land in the destination country airport. Your device automatically finds the supported network and connects to provide the internet connection. If it's still not activated after you land, restart your device or manually connect your iPhone to the supported device. 

How long does an eSIM take to activate?

Whether you activate eSIM right after installation or at your destination country, it takes almost 5 minutes to complete. Your device notifies you when eSIM is activated on your device. The activation time also depends on the provider you choose. Usually, eSIMs are reliable enough to install and activate within 12 months; otherwise, you will be required to buy a new one.

Conclusion

Compared to physical SIM card, roaming, and portable WiFi, eSIM is an affordable and convenient means of connection with zero roaming bills. The installation and activation method of eSIM is straightforward. You can set eSIM on your device by scanning a QR code or using the manual method. The minimum eSIM takes is 3 to 5 minutes to set up on your iPhone. 

Suppose you are looking for a hassle-free travel switch to hop in European countries or South or Northern America. In that case, Defy Mobile will help you to stay connected anytime and anywhere with no roaming. 

FAQs

Why is my iPhone not detecting eSIM?

If your iPhone is not detecting your eSIM, it may be due to outdated software. Older iOS software may not support eSIM, which causes eSIM activation failure and connectivity issues. You should update your iPhone to the latest iOS version to fix it. 

Can I activate eSIM myself?

Yes, it is easy to activate eSIM on yourself. Typically, you are required to scan the QR code or add the activation details manually in settings, and after 5 minutes, your eSIM will be activated. 

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