Scan eSIM Activation Code: How to Use Your Card Correctly

eSIM-Aktivierungscode von einer Pappkarte scannen und sicher einrichten

In short: here’s what you’ll learn in this article: If your phone displays “Please scan the eSIM activation code from the included cardboard,” you usually don’t need a new SIM card but the correct way to scan it. Here you will find the steps for iPhone and Android, the most common errors, and what to do if the QR code no longer works.

What does this message mean?

The wording “Please scan the eSIM activation code from the included cardboard” appears when your smartphone wants to set up an eSIM profile and expects the QR code from your mobile provider. This cardboard is not a traditional SIM card. It only contains the access data with which your device securely downloads the eSIM profile from the provider.

The crucial point: you do not scan the code like a normal website QR code, but ideally directly in your smartphone’s mobile network settings. If you only open the camera app, it might work depending on the manufacturer, but sometimes it leads to a help page or does nothing at all.

Telekom also explains the activation code as a QR code needed to activate an eSIM. Apple describes for iPhones that an eSIM can be set up via QR code, provider app, or manual entry: Apple Support for eSIM setup.

Before scanning: these points must be correct

Before you hold the card up to the camera again, quickly check the basics. Many activation errors are not caused by the cardboard, but by connection issues, lighting, or a code that has already been used.

  • Enable Wi-Fi: The phone needs internet access to download the eSIM profile.
  • Update device: Install any pending iOS or Android updates if the eSIM function does not appear.
  • Keep the card flat: Bends, shadows, and reflections can prevent the scan.
  • Do not reuse the QR code: Many eSIM codes can only be installed once.
  • Check compatibility: Not every smartphone supports eSIM, even if it seems relatively new.

💡 If you want to activate the eSIM on the go, it’s best to do the first scan before departure while on Wi-Fi. This way, you avoid stress if the hotel Wi-Fi is slow or your roaming has already been turned off.

Is your phone eSIM-compatible?

Check the full list of compatible smartphones: iPhone, Samsung, Google Pixel and 200+ models.

Check compatibility

Scanning the eSIM activation code from the cardboard: step by step

The exact menu name varies by device. The logic remains the same: you open the mobile network settings, add an eSIM, and scan the QR code from the cardboard there.

Scanning eSIM activation code: process from cardboard to mobile profile

On the iPhone

Open Settings, go to Cellular, and select the option to add an eSIM. Then you can scan the QR code on the cardboard. Hold the card steady until the iPhone recognizes the mobile plan.

If your iPhone accepts the code, follow the further steps on the screen. Then you can decide whether the eSIM should be used for mobile data, calls, or both. For a travel eSIM, mobile data is usually the most important point.

On Android

Depending on your manufacturer, open Settings, then Network & Internet, Connections, or SIM Manager. Then select add eSIM, add mobile plan, or download SIM. After that, scan the QR code from the cardboard.

On some Android devices, you must first confirm that you do not want to insert a physical SIM. Also, the menu option can differ slightly depending on Samsung, Google Pixel, Xiaomi, or Honor.

⚠️ Do not delete an eSIM profile prematurely. If the QR code has already been used, you often cannot reinstall the same eSIM afterwards. Contact the provider first and ask for a new activation code.

If the QR code is not recognized

A QR code not being recognized does not automatically mean the eSIM is defective. Often, the scanning angle is unfavorable, the device is offline, or the code has already been used on another smartphone.

Problem Likely cause Immediate action
Code is not recognized at all Too little light, reflection, or wrong scanning area Lay card flat, clean camera, adjust distance
Phone shows an error message No internet or provider server unreachable Switch Wi-Fi, restart device, try again later
Code has already been used eSIM profile was already installed on a device Request a new QR code from the provider
eSIM menu missing Smartphone, region or plan does not support eSIM Check device compatibility and provider approval
eSIM activation code not working: identifying typical scanning errors

Telekom recommends checking Wi-Fi connection, device, and activation code for QR code errors, among other things: Telekom help for eSIM QR code errors. Even if you’re not with Telekom, the error logic is similar.

Manual entry: useful but error-prone

Many eSIM cards show a long activation code or an address for manual installation alongside the QR code. This option is helpful if the camera cannot recognize the code. However, it is much more error-prone since a single wrong letter is enough to cause errors.

Use manual entry only if you are sure the QR code is clearly readable but still not working. Do not copy codes from foreign forums. Use only the data from your provider or your customer account.

✅ Good to know: The cardboard is often just a carrier for the activation code. What matters is that your provider still releases the eSIM profile and the code has not already been used.

Which eSIM should you choose if you don’t have one yet?

If you see this message, you probably already received an eSIM from your mobile provider. However, if you are currently preparing a trip and still choosing between providers, it’s worth looking at an eSIM that offers clear QR code access, easy installation, and good support.

For travelers, providers such as Yesim, Voye, eSIMPal, 9esim, or abesteSIM are interesting because they are geared towards digital eSIM provisioning. However, the right choice depends on your destination, data needs, device, and desired duration.

Here you will find a current selection of recommended eSIM providers:

Special cases: O2, Vodafone, Apple Watch and travel eSIM

With German mobile providers, you don’t always find the QR code just on a card. Sometimes it’s in the customer account, in the app, or generated again after identity verification. If you’re with O2, our guide Getting and scanning the eSIM QR code with O2 will help you. For Vodafone, there is also the guide Scanning and activating Vodafone eSIM QR code.

For an Apple Watch activation, the process differs because the watch is usually linked via the iPhone and the mobile provider. If you want to set up a watch, first read our overview on Apple Watch eSIM setup.

For travel eSIMs, the key special case is the activation time. Some providers load the profile immediately, others activate the data plan only upon network connection in the destination country. Therefore, you should read the instructions from each provider before installing the eSIM.

Checklist: scan first, then travel

If you want to decide quickly, follow this short sequence. It prevents most errors on the first try.

  • Connect your smartphone to a stable Wi-Fi network.
  • Check compatibility and free eSIM slot.
  • Open mobile network settings, not just the camera app.
  • Scan the QR code on the cardboard calmly and completely.
  • Name the eSIM profile clearly, for example after the provider or travel destination.
  • Switch mobile data only when you are sure the eSIM is active.

💡 Name the eSIM directly after its purpose, such as “Travel” or “Work.” This way, you won’t confuse it later with your main number.

FAQ

Where can I find the eSIM activation code?

You can find it either on the included cardboard, in your customer account, in the provider’s app, or in an email from your mobile provider. For some providers, the QR code appears only after logging in.

Can I scan the QR code with the regular camera app?

Sometimes yes, but more reliable is the path via mobile network settings. There, your smartphone recognizes the code as an eSIM profile and directly starts the correct setup.

What should I do if the eSIM code has already been used?

Do not continue installation based on suspicion. Contact the provider and request a new activation code. Many eSIM QR codes are only usable once for security reasons.

Can I transfer the same eSIM to another phone?

It depends on the provider. With many travel eSIMs, reinstalling on a second device is not possible. For mobile contracts, providers often can provide a new eSIM profile.

Do I need Wi-Fi for activation?

Yes, in most cases a stable internet connection is necessary. The phone must download the eSIM profile after scanning and activate it with the provider.