eSIM technology and carrier support evolve quickly. Device compatibility, carrier offerings, install steps, and pricing can change with software updates and policy revisions. This article reflects the general state of eSIM technology at the time of publication — always check current carrier documentation for the specific device and country in question.
Europe runs on private aviation the way Manhattan runs on yellow cabs — short hops between cities that would otherwise eat half a travel day. JetLuxe brokers light jets and midsize aircraft across every major European FBO, with empty-leg pricing on routes that move daily.
Get a JetLuxe quoteTwo main sources, depending on the use case.
From a home carrier. For replacing a physical SIM on an existing line, or for activating a new line, the user contacts their carrier — through the carrier’s app, website, or customer service. The carrier confirms the device’s eligibility, generates an eSIM profile, and provides an activation QR code (typically delivered by email, displayed in the app, or shown on a printed receipt at a store).
From a travel eSIM provider. For data while travelling abroad, providers like Airalo, Yesim, and others sell country-specific or regional data plans through their apps or websites. The user selects the destination, chooses a data allowance and duration, pays, and receives an activation QR code immediately. The QR code can be scanned anytime before or after arrival in the destination.
Both sources deliver the same kind of QR code or activation details. The difference is the type of plan — full-service mobile plans (calls, texts, data, often a phone number) from a carrier, versus prepaid data-only plans from travel eSIM providers.
Three things, all simple:
1. An eSIM-capable phone. Almost all iPhones since 2018 (XS and later) and most flagship Android phones since 2020. See our compatibility guide for specific device support.
2. An internet connection. Wi-Fi is ideal because eSIM activation downloads a profile from the carrier’s servers, which requires a stable connection. Mobile data (on a different SIM or a different line) also works, but Wi-Fi is more reliable.
3. The activation details. Either a QR code (delivered by the carrier or eSIM provider) or the manual entry information (SM-DP+ server address and activation code). These are provided immediately after purchase by most eSIM providers.
That’s the entire prerequisites list. No need for a SIM tool, no need to remove anything from the phone, no waiting for a card to arrive. The whole process happens in the phone’s Settings.
The QR code method is the standard install path. Steps:
1. Display the QR code. Open the email or the app where the QR code was delivered. Display it on a screen — a computer monitor, tablet, second phone, or printed copy all work.
2. Open the eSIM install screen on the phone.
3. Scan the QR code. Point the phone’s camera at the QR code on the other screen. The phone reads the code and displays the eSIM provider’s name and plan details.
4. Confirm and install. Tap “Add Cellular Plan” or similar. The phone connects to the provider’s servers, downloads the eSIM profile, and installs it. This typically takes 30 seconds to a few minutes.
5. Configure the line. The phone will prompt for the new eSIM’s label (“Travel,” “Personal,” “Work,” etc.), which line to use for what (calls, texts, mobile data, iMessage), and similar setup details. Choose based on the intended use of the eSIM.
Used when scanning a QR code isn’t practical — for example, when the QR code email is on the same phone that needs the install.
Steps:
1. Get the activation details. The provider should have given you the SM-DP+ server address (looks like “sm-dp.provider.com”) and the activation code (a string of letters and numbers, sometimes called an LPA address or activation token).
2. Open the eSIM install screen. Same path as the QR code method (Settings > Cellular on iPhone, equivalent paths on Android).
3. Select manual entry. When prompted to scan a QR code, look for a small text link or button labelled “Enter Details Manually” or “Enter activation code.” Tap this.
4. Enter the details. Type in the SM-DP+ address and activation code exactly as provided by the carrier or eSIM provider. Both are case-sensitive in some implementations.
5. Confirm and install. Same as the QR code method — the phone connects to the SM-DP+ server, downloads the profile, and installs it.
Many travel eSIM providers also support “deep links” — tapping a link in their app automatically opens the eSIM installer with the details pre-filled. This is even faster than manual entry when available.
Once the install starts, three things to do:
Keep the phone connected to Wi-Fi or working mobile data. The install requires the phone to download the eSIM profile from the provider’s servers. Losing the connection mid-install can cause the install to fail or hang. Don’t toggle airplane mode, don’t reboot the phone, don’t move out of Wi-Fi range.
Don’t cancel or interrupt the process. Some eSIM installs show a progress indicator; others don’t and just process silently. Give it at least 2–3 minutes before assuming something has gone wrong.
Watch for the line label prompt. Once the eSIM is installed, the phone typically asks the user to give it a label (Personal, Work, Travel, etc.) and to decide how it should be used. This is the point where you set whether the new eSIM handles data, calls, texts, etc.
For dual-SIM setups, the “default line” settings matter. The phone asks which line to use as default for calls (the one most people will dial), which to use for mobile data (the cheaper one when travelling), which to use for iMessage and FaceTime (iPhone), and which to use for outgoing texts. Choose based on the intended use of each line. These settings can be changed later in Settings > Cellular (iPhone) or equivalent on Android.
After the install completes, four quick checks:
1. Signal indicator. The phone’s status bar should show signal strength for the new line. iPhones with dual-SIM show two signal indicators side by side; Android phones typically show both in the status bar or in the notification shade.
2. Cellular settings screen. In Settings > Cellular (iPhone) or Settings > SIM manager (Android), the new eSIM should appear in the list of lines, labelled with the carrier or provider name and the chosen line label.
3. Test data. If the new eSIM is supposed to be the active data line, turn off Wi-Fi briefly and try loading a web page or opening an app. The data should come through the new eSIM. If the page loads, the data line is working.
4. Test a call or text (if applicable). If the new eSIM is a full mobile plan (not data-only), try making a test call or sending an SMS. For data-only travel eSIMs, this step doesn’t apply.
If all four checks succeed, the install is complete and working. If any check fails — particularly the data test — go to the troubleshooting steps for the specific failure mode. Our common eSIM problems guide covers the typical failures and their fixes.
Common failure modes and what to try:
QR code won’t scan. Try increasing the brightness of the screen displaying the QR code, or print the QR code on paper. Make sure the camera lens is clean. If the code still won’t scan, switch to manual entry.
“Invalid activation code” error. Usually means the activation code has been used before, has expired, or is incorrect. Double-check the activation details against what the provider sent. If the code has already been used (some providers’ QR codes are single-use), contact the provider to reissue.
“Unable to connect to server” or timeout error. Usually an internet issue. Make sure the phone is on a stable Wi-Fi connection or has working mobile data. Try again after a few minutes. If the error persists, the SM-DP+ server may be temporarily unavailable — wait an hour and try again.
Install completes but no signal. The phone may need to be reset to register with the new network. Try toggling airplane mode on and off, or restarting the phone. For travel eSIMs, signal sometimes takes 5–15 minutes to establish on first activation.
Install completes but data doesn’t work. Check the data settings — Settings > Cellular > Cellular Data (iPhone) — and confirm the new eSIM is selected for mobile data. Confirm data roaming is on if the eSIM is from a different country than where you currently are.
For persistent failures, the eSIM provider or carrier can typically reissue the activation details. Most providers will void the original activation and issue a new one without charge, particularly within the first 24 hours of purchase. Airalo and Yesim both have responsive customer support for activation issues.
Yes, and it’s strongly recommended. Travel eSIMs can be installed at home, days or weeks before departure, without activating the data plan. Most plans only start counting down (in time or data) once the eSIM connects to a local network in the destination country.
Installing before travelling has several advantages:
For most travel eSIM providers, the plan duration starts counting from first network connection in the destination, not from purchase or install. A 7-day plan installed at home but only activated on arrival will run for 7 days from arrival. Check the specific plan’s terms — a few providers do count from purchase, in which case install timing matters more.
After installation, the phone offers to label the eSIM. Useful labels include:
The labels are user-changeable later, so the initial choice doesn’t need to be permanent. The labels appear in the phone’s call screen, the messages app, and the cellular settings.
For managing multiple eSIM profiles over time, the phone’s cellular settings show all installed eSIMs. From there, the user can enable, disable, or remove individual profiles. Disabled profiles remain installed but inactive; removed profiles are deleted entirely and would require reinstallation (and a new activation from the provider) to restore.
Most modern phones store at least 5 eSIM profiles, and recent flagships (iPhone 13+, Galaxy S22+) store at least 8. Older phones may store fewer. When the storage limit is reached, the user must remove an existing profile before adding a new one.
Compressed into a sequence to follow:
The whole process for a working install typically takes 5–10 minutes. The most common failure points are the internet connection during install (use stable Wi-Fi), the QR code being unscannable (increase screen brightness or print it), and post-install settings not being correctly chosen (review the line assignments in cellular settings).
For first-time eSIM users, the process feels slightly more complex than inserting a physical SIM. By the second or third install, it becomes routine — usually faster than the equivalent physical SIM process, particularly for travel use where the alternative involves finding and buying a local card at the destination.
Typically 5–10 minutes from start to finish. The actual download of the eSIM profile from the carrier’s server takes 30 seconds to a few minutes; the rest is configuring the line label and choosing which line handles calls, data, and texts.
Yes, and it’s recommended. Most travel eSIMs can be installed at home using stable Wi-Fi, and the plan duration only starts counting from first network connection in the destination. Pre-installing means working data the moment you land, with no airport queues or troubleshooting in a foreign country.
Common causes include unstable Wi-Fi during install, a QR code that won’t scan (try increasing screen brightness or printing it), or an activation code that’s already been used. Try restarting the phone, toggling airplane mode, or using manual entry instead of QR code scanning. If failures persist, the provider can typically reissue activation details.
No. Most phones support having a physical SIM and one or more eSIMs active simultaneously. The eSIM installs alongside the existing SIM. You can choose which line handles which function (calls, data, texts) in the cellular settings after install. The only exception is the US iPhone 14 and later, which have no physical SIM slot to begin with.
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