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Do I Need Wi-Fi to Activate an eSIM?

To activate a travel eSIM from PrimaSIM you need a network connection. You can use any Wi-Fi or another smartphone as a hotspot. Internet access is only required during the initial setup and usually takes just a couple of minutes. Below, we explain in more detail why it’s necessary and at which steps it’s most important.

Why Do You Need an Internet Connection?

Even if you’ve already purchased your travel eSIM and have a saved QR code or all the manual activation details (Activation Code/SM-DP+ Address) you still need online access. Here’s why:

  • You need to connect to PrimaSIM servers to download your digital profile. This includes a unique identifier, network parameters (MCC/MNC, APN, proxy, etc.), encryption keys that protect communication between your smartphone and the network, and service data related to your plan.
  • You need to verify the authenticity of your profile and confirm that your QR code is valid. This process is fully automated, so you don’t need to do anything manually.
  • After installation your device downloads additional network settings. These ensure that your phone connects to the internet and other services correctly.

You can find our step-by-step activation guide for iPhone and Android smartphones at the link.

Can I use mobile data from another SIM or eSIM?

Yes, if you already have another active SIM with mobile data, you can use it as an alternative to Wi-Fi. Just make sure the signal is stable, even 3G will work.

When Do You Need It?

You only need Wi-Fi or mobile data from another SIM when installing your digital profile. You may also need internet access to download the QR code or manual installation details if you haven’t saved them in advance. After that, during setup, storage, and regular use, an internet connection is no longer required.

Conclusion 

Yes, you’ll need access to Wi-Fi or mobile data from another SIM on your phone during the activation stage. A stable connection is the main thing, but high speed isn’t necessary. The process takes a few minutes.