Travel guide

How to activate WOM eSIM: a step-by-step guide

Marc González Sáez Marc González Sáez ·August 7, 2026 ·10 min. read
Cómo activar la eSIM de WOM | eSIM de viaje | PuraSIM

How to activate WOM eSIM?

To activate your WOM eSIM, you need Wi-Fi, an eSIM-compatible phone, and the QR code (or manual details) provided by the operator. On your phone, go to Settings > Mobile Data > Add eSIM, scan the code or enter the manual details, confirm the plan, and the line will be active immediately.

That's the process when everything goes smoothly. The problem is that "everything goes smoothly" doesn't always happen: the QR code arrives late, the phone doesn't recognize the option, or the line activates but has no data signal. If you've already tried and it didn't work, head to the common problems section to find the most likely reason based on what you're experiencing. If you're just starting, read on in order: the steps below cover iPhone and Android separately because the menus are not identical on both systems.

What do you need before activating your WOM eSIM?

Before touching any menu, gather these three things. It will save you from starting over midway:

  • Stable Wi-Fi connection. Activation downloads a data profile from the operator's server; while mobile data from another line sometimes works, Wi-Fi is more reliable and avoids charges if you're using another SIM with limited data.
  • An eSIM-compatible phone. Not all models, nor all regional versions of the same model, come with this feature. If you don't know if yours has it, check the guide on eSIM-compatible phones before wasting time looking for a menu that doesn't exist on your device.
  • The QR code or manual activation details (SM-DP+ and activation code). WOM provides these after purchase or switching to eSIM, usually by email or within the operator's app.

If you've never used an eSIM and want to understand the technology before activating it, the guide what is an eSIM explains the difference from a physical SIM in simple terms.

A detail almost no one mentions: if your physical SIM still works, don't remove it from your phone when activating the eSIM. Most modern devices support dual active lines at the same time — data via eSIM, calls and verification messages (banks, apps) via the physical SIM. This way, you don't lose access to SMS codes while testing that the eSIM works correctly.

How to activate WOM eSIM on iPhone step-by-step

On iPhone, the process is within Settings and is quick if the QR code is valid:

  1. Connect to Wi-Fi.
  2. Open Settings > Mobile Data (or Cellular) > Add eSIM.
  3. Choose "Use QR Code" and point your camera at the code provided by WOM. If you cannot scan it (for example, because it arrived in a PDF you're viewing on the same phone), tap "Enter Details Manually" and type the server address and activation code.
  4. Wait for the system to validate the profile; a confirmation message will appear.
  5. Configure line labels (e.g., "Personal" for your physical SIM and "WOM" for the eSIM) and choose which one uses mobile data by default.
  6. In Settings > Mobile Data, confirm that the WOM line has the data toggle enabled and, if you're going to use it with roaming or outside your usual network, that "Data Roaming" is turned on.

If your device doesn't show the "Add eSIM" option, it's likely not compatible or has an outdated operating system version — it's worth updating before assuming the problem is with the QR code.

How to activate WOM eSIM on Android step-by-step

On Android, the menu name changes depending on the brand (Settings, Configuration, or Advanced Settings), but the logic is the same:

  1. Connect to Wi-Fi.
  2. Open Settings > Connections (or Networks) > SIM Manager, and look for the "Add eSIM" or "Download SIM" option.
  3. Select scan QR code and point the camera, or tap "Enter code manually" if the QR cannot be read from the screen.
  4. Confirm the profile download and wait for the system to install it.
  5. Name the line to differentiate it from your physical SIM and choose which line uses mobile data by default in the dual SIM section.
  6. Check that the APN (Access Point Name) has been configured automatically; if you don't have data after activating, this is usually the reason.

The general guide on how to install an eSIM includes screenshots of the most common menus by brand, useful if your device uses a custom interface (Samsung One UI, MIUI, etc.) where menu names vary.

Quick differences when activating: iPhone vs. Android
Step iPhone Android
Menu path Settings > Mobile Data > Add eSIM Settings > Connections > SIM Manager > Add eSIM
Name of manual option "Enter Details Manually" "Enter code manually" (varies by brand)
APN configuration Automatic in almost all cases Automatic, but sometimes requires manual adjustment
Dual active line Yes, with data line selection by app Yes, in "Dual SIM" or "SIM Manager"

How do I request my WOM eSIM QR code?

The activation QR code is provided directly by WOM, not PuraSIM or any third party: it's data linked to your line and your purchase with that operator. It usually arrives by email when you purchase the plan, or becomes available within the operator's app or website in the line management section.

If you purchased the eSIM and didn't receive the email with the QR code, check your spam folder before assuming it wasn't sent — this is the most common reason for "I didn't receive anything." If after checking it still doesn't appear, the next step is to contact the operator's support directly, because only they can resend or regenerate that code.

If you haven't bought the plan yet and are looking for how to do so, the guide how to buy WOM eSIM covers the complete purchase process before getting to the activation part.

An eSIM QR code can only be redeemed once. If you scanned it on one phone and then try to use it on another (e.g., you changed devices), the second attempt will fail even if the code looks identical — it's not your error, it's how the technology is designed.

Can I activate my WOM eSIM from home before traveling?

Yes. The eSIM is activated via Wi-Fi, so you don't need to be in the operator's country or have the physical SIM installed. You can install the profile days before your trip without a problem.

What is worth planning is when the line starts consuming data: most operators count the plan's validity from when the profile is first activated, not from when you install it. If you install the profile at home but leave the data line off until you land, you avoid spending plan days while still in your country. This directly connects to the previous section's recommendation: install first, activate data consumption later, when you actually need it.

Common problems activating WOM eSIM (and how to solve them)

From most to least likely, here's how to resolve typical activation problems:

  1. "Add eSIM option does not appear." The phone is not compatible, or has an old operating system version. Check the list of eSIM-compatible phones (above) and update the system before proceeding.
  2. "The QR code has already been used and is not accepted." Each QR code can only be redeemed once. If you've scanned it before (even on another phone), you need to ask the operator for a new one.
  3. "The line activated but I have no data." Check that the mobile data toggle for that line is on and that the APN is configured. On Android, sometimes you have to enter it manually.
  4. "I didn't receive the email with the QR code." Check spam first. If it's still not there, contact the operator's support to resend it.
  5. "I have signal but no internet." Confirm that data roaming is activated if you are outside your usual network, and that the active data line is the eSIM and not the physical one by mistake.

If the problem persists after checking these points, the broader guide on common eSIM problems covers less frequent cases, such as corrupted profiles or conflicts between two eSIMs installed simultaneously.

And if after all this the problem still remains unresolved because you can't contact operator support, it's worth knowing that there's an alternative with a more direct support channel — we'll see it in the next section.

Local eSIM (like WOM's) vs. international eSIM for travel

If your problem is simply "I need data for travel" and activating your local eSIM is getting complicated, it's worth understanding the difference between sticking with your local operator's line and using an international eSIM designed for travelers.

Local operator eSIM vs. international travel eSIM
Aspect Local eSIM (e.g., WOM) International eSIM (PuraSIM)
Coverage Designed for one country or region More than 200 destinations with the same eSIM type
Activation Depends on each operator's process In approximately 1 minute once the QR is scanned
Support if something fails Varies by operator and available channel 24/7 in all languages via email and WhatsApp
Activation validity Varies by operator 180 days from purchase to activate
Intended use for Residents or everyday lines in the country Travelers who need data in one or more countries

No option is better in all cases. If you live in the operator's country and just need an everyday data line, a local eSIM makes sense. The problem arises when you're traveling, operator support is difficult to contact in another language or time zone, and you need to resolve something quickly. That's where an international eSIM with permanent support makes a real difference. You can see the options in the international eSIM collection.

When is it convenient to switch to an international eSIM?

There are three specific signs that an international eSIM would be more convenient for you than struggling with activating a local line in each country you visit:

  • You're visiting more than one country on the same trip. Instead of activating a different line at each border, a single international eSIM covers multiple destinations.
  • You need support in your language regardless of the time. If your local operator's support doesn't respond quickly or doesn't provide service in Spanish outside business hours, a 24/7 support channel via email and WhatsApp solves that.
  • You want to activate in advance without time pressure. With 180 days to activate from purchase, you can buy the eSIM calmly and activate it on the day you truly need it, without the validity period running while you plan your trip.

If, on the other hand, your need is specific and local — for example, you already live in the country and just need to sort out the WOM line — there's no need to change anything; following the activation steps above should resolve it. The guide on eSIM vs. roaming delves deeper into when each model is best for your next trip if you still have doubts.

Frequently asked questions

How to activate eSIM with WOM?

Connect to Wi-Fi, go to your phone's mobile data or SIM manager menu, choose "Add eSIM," scan the QR code WOM provided (or enter the details manually), and confirm the plan. The entire process takes a few minutes if the code is valid and the phone is compatible.

How can I activate my eSIM from home?

Yes, you can: activation depends on a Wi-Fi connection, not being in a specific location. You can install the eSIM profile at home, before traveling, and decide when to activate the data line based on when you start using it.

How can I request a QR code for my WOM eSIM?

The QR code is provided directly by WOM, generally by email after purchase or through the operator's app. If you didn't receive it, check your spam folder, and if it's still not there, contact operator support to resend or regenerate it.

How to activate eSIM online?

All eSIM activation is, in essence, an "online" process: the phone downloads a digital profile from the operator's server using an internet connection (usually Wi-Fi). There is no physical version to install; the entire process occurs within the phone's settings.

What if my phone is not eSIM compatible?

If the phone does not have the feature, you simply will not see the "Add eSIM" option in the settings, no matter what code you try to use. In that case, there is no way to activate an eSIM on that device; the alternative would be to use a physical SIM.

Can I have WOM's eSIM and another international eSIM at the same time?

It depends on the phone, but most recent devices allow installing multiple eSIM profiles and having two active lines at once (one for data, another on standby). You can switch which one uses mobile data depending on the country you are in.

What do I do if the QR code has already been scanned and doesn't work?

Each eSIM QR code can only be redeemed once. If it has already been used (even on another phone), it will not work again, and you need to ask the operator for a new code.

Does eSIM work the same as a physical SIM for calls and SMS?

Yes, once activated, the eSIM works just like a physical SIM for calls, messages, and data, provided the contracted plan includes those services. The difference is only in how it is installed, not in how it functions afterward.

In summary

Activating WOM eSIM is, in most cases, a matter of Wi-Fi, a compatible phone, and the correct QR code: Settings > Mobile Data > Add eSIM, scan, confirm. When something goes wrong, it's almost always one of three things: the device is not compatible, the QR code has already been used, or the data toggle for that specific line is not activated.

If, after checking all of this, the problem remains unresolved because operator support is difficult to contact, or if what you really need is coverage for several countries on the same trip, there's no point in continuing to struggle with a line designed for local use. In that case, an international eSIM with 24/7 support via email and WhatsApp, activation in approximately 1 minute, and 180 days to activate it from purchase solves the same problem without the friction of depending on a single operator's support channel. You can review the available options in the international eSIM collection.

Marc González Sáez
Written by Marc González Sáez Founder of PuraSim and a specialist in eSIM and connectivity for travelers. He has been helping people travel connected worldwide for years without overpaying for roaming, and personally tests eSIMs in each destination before recommending them.
Share this guide
Your eSIM for this destination

Activate it with a QR code in 1 minute and arrive connected. No roaming, hotspot included, and 24/7 human support.

Your next trip, connected

Data in 218 destinations. No roaming. Activates in 1 minute.

Choose your eSIM