eSIM Not Activating? How to Fix It, Step by Step

TL;DR

• Connect to stable Wi-Fi first. Installing an eSIM needs internet, and Apple says a new iPhone needs Wi-Fi or a hotspot in most cases.
• Then run the basic sequence: toggle Airplane Mode, turn the eSIM line off and on, restart the phone, and update the software.
• If the QR code fails, install with the manual details (SM-DP+ address and activation code) instead of scanning again.
• Do not delete the eSIM profile in frustration. A QR code often works only once, and deleting the profile can leave you needing a new one.
• If nothing works, send your provider the exact error message and your phone's EID or IMEI. Do not reinstall or delete anything until they reply.

First, understand what "not activating" means

People use the phrase for three different problems, and each has a different fix.

1. The eSIM will not install. You scan the code and get an error, or the phone says it cannot add the plan. The problem is between your phone and the provider's server, or with the code itself.
2. The eSIM installed but is stuck on "Activating." The profile is on the phone, but the phone cannot register on a network. This is usually a settings, software or connection problem.
3. The eSIM is active but has no service. The line shows, but you see "No Service," or data does not load. This is normally a data roaming, default line or network selection problem.

Identify which one you have before changing anything. It saves you from repeating steps that cannot help.

Step 1: Check the basics before anything else

Start with these four checks.

Use stable Wi-Fi, not a weak signal

An eSIM is a downloaded profile. The phone has to reach the provider's server to fetch it, and a patchy connection can interrupt that. Apple's guidance for a new iPhone is to connect to Wi-Fi or a hotspot, with an exception for some eSIM-only iPhones in certain countries and regions. If you are at an airport or hotel, captive-portal Wi-Fi that asks you to log in on a web page can block the download. Try your home network, a mobile hotspot from another phone, or a different Wi-Fi network.

This is why we recommend installing your travel eSIM at home, before you leave, rather than on arrival, once you know what starts the plan's validity. If installation starts it, install on the day you fly. A home network you trust is usually the most reliable place to do it.

Confirm the phone supports eSIM and is unlocked

Not every phone has an eSIM chip, and a phone locked to one carrier may refuse a plan from another. Apple states that an iPhone needs a carrier that supports eSIM for setup. If you are unsure about your model, use our device compatibility check. For U.S. buyers, our guide on which phones support eSIM explains why newer iPhones sold in the U.S. have no SIM tray at all.

If you bought your phone on a payment plan, ask the original carrier whether it is unlocked. A locked phone can refuse a travel eSIM from another provider. On iPhone, an unlocked phone shows "No SIM Restrictions" next to Carrier Lock in Settings > General > About.

Update the software

Apple's troubleshooting page tells iPhone owners to use the latest version of iOS available for their device. On Android, check the system update screen in Settings and install anything pending. Restart the phone afterward.

Restart once, properly

A full restart clears stalled network processes. Turn the phone off, wait about ten seconds, and turn it on again. Do not skip this step because it feels too simple. It is on Apple's own list of fixes.

Step 2: Fix an eSIM stuck on "Activating"

If the plan is installed but the status never changes, follow this order. After each step, check whether a carrier name or signal bars appear at the top of the screen.

On iPhone

Apple's support page lists the first three steps in this order, then a carrier settings check. We suggest following them the same way:

1. Turn Airplane Mode on, wait a few seconds, then turn it off. This forces the phone to search for networks again.
2. Open Settings, then Cellular (or Mobile Data), and look for the line. If the number or plan you are trying to activate appears, switch it off and back on.
3. Restart the iPhone.
4. Check the carrier settings. Go to Settings, General, About, and tap the version number next to Carrier in the eSIM section. If an update is available, a prompt appears. Install it.

The steps above come from Apple Support's guide to eSIM setup problems. On iOS 18 or later, Apple also says the Apple Support app can run additional diagnostics.

Two more checks for travelers:

• Data roaming. Travel eSIMs generally work by connecting to a local partner network abroad. On the eSIM line, make sure Data Roaming is on once you have landed, if the plan's setup instructions say so. Your home plan's roaming setting is separate.
• Default data line. In Cellular settings, set Cellular Data to the travel eSIM, and turn off "Allow Cellular Data Switching" if your phone keeps falling back to your home line. Keep your home line's own data roaming off to avoid charges.

On Android

Menus differ by brand, but the logic is the same:

1. Open the SIM settings (on many phones, Settings, Network & internet, SIMs).
2. Check that the eSIM is listed and switched on.
3. Turn Airplane Mode on and off.
4. Set the eSIM as the mobile data line, and turn on data roaming for it.
5. Restart the phone.

For Samsung Galaxy owners, we cover specific menus and common errors in our guide to eSIM on Samsung Galaxy.

When the plan has a start date

Some travel eSIMs start counting their validity when the phone first connects to a network at your destination, and some start at installation. This matters: if your plan seems "stuck," check the plan terms before assuming it is broken. On WayfarerSIM, they are on your private trip page. If you installed at home, the eSIM may simply be waiting for a supported network. Our article on activating a travel eSIM without losing paid days explains the timing in more detail.

Step 3: When the QR code will not work

QR code trouble has its own set of causes. Here are the usual ones, with fixes.

Common reasons a QR code fails

Our short guide to the four places to check on your eSIM QR code before takeoff goes through where the code is delivered and how to keep it safe.

Do not scan the screen you are holding

A QR code on your phone cannot be scanned by the same phone's camera. You have three options:

1. Open the email on a laptop or tablet and scan from there.
2. Use a second phone, and keep the code private.
3. On an iPhone with iOS 17.4 or later, tap and hold the QR code image in the default email app or browser and choose Add eSIM. Apple's page also lists a carrier link, a carrier app, manual entry and supported transfer as alternatives.

Install manually when scanning fails

A QR code is just a way of delivering two pieces of text: a server address (often called the SM-DP+ address) and an activation code. Your order email normally lists both below the image. You can type them in.

iPhone: Apple says to go to Settings, then Cellular or Mobile Data, then Add Cellular Plan, then Enter Details Manually at the bottom of the screen.

Samsung Galaxy: Samsung's support page says to open Settings, Connections, SIM manager, Add eSIM, then Scan QR code. To type the details instead, tap Enter activation code on that screen. Menu names can vary by model and software version.

Copy the text exactly. A stray space at the end of a pasted code can cause an "invalid" message. Our article on connecting by QR code or manual code shows what the manual details look like.

If you lost the QR code

You may not need to buy again. Search your email for the sender and subject line from your order, check spam and promotions folders, and look at any alternate address you might have typed at checkout. If the code was already installed on a phone, the profile may still be in your settings, and no code is needed at all. If you still cannot find it, or the eSIM was deleted and the code is single-use, ask the provider to reissue it.

Step 4: The eSIM downloads but still will not activate

This is the most frustrating case: the phone says the plan was added, yet there is no service. Check these in order.

1. Is the line turned on? Go to your cellular or SIM settings. A newly added eSIM can be listed but switched off.
2. Is it the data line? Your phone may still be using your home SIM for data. Select the eSIM for mobile data.
3. Are you in a supported area? A regional plan works only in its listed countries. Check the coverage list on the plan page.
4. Is data roaming on for the eSIM line? Travel eSIMs usually need it.
5. Is there coverage at all? Inside a building, in a basement or on a plane, you may have no signal from any network. Move near a window or outside.
6. Try manual network selection. In the eSIM line's network settings, turn off automatic selection and pick one of the available networks. Switch back to automatic afterward.
7. Check carrier settings and software again, as in Step 2.

If you are on a phone with two lines, label them clearly. Renaming the lines "Home" and "Travel" prevents the mistake of switching the wrong one off. If you carry several eSIMs, switch between them before you fly, not at the airport.

What not to do

• Do not delete the eSIM profile as a first move. Many eSIM codes work only once. After deletion, the same QR code may no longer install, and you would need a new one from the provider. Delete only when the provider tells you to, or when the plan has expired.
• Do not scan the code repeatedly. Each failed attempt may count against the code. Fix the cause (Wi-Fi, lock, software), then try again once.
• Do not reset network settings casually. It also erases saved Wi-Fi networks and may disrupt your home line. Use it only after the simpler fixes.
• Do not wait until you land. If the eSIM is not installed before departure, you may have no internet at the airport to fix it. If installation starts your plan's validity, install on the day you fly.

Work out where the problem is

To decide whether to keep troubleshooting or ask for help, sort the failure into one of three places.

A useful test: if the same code fails on stable Wi-Fi, on a fully updated, unlocked phone, and the manual details fail too, the problem is probably the order. At that point, more retries only waste time.

When to contact support, and what to send

Contact your provider after you have tried Wi-Fi, a restart, Airplane Mode, the line toggle and manual entry. For iPhone problems that remain, Apple says to contact your carrier, and it suggests having the error message, your phone number, the carrier account password or PIN, and your iPhone's IMEI or EID ready.

For a travel eSIM, the useful list is shorter:

1. Your order number and the email address used at checkout.
2. The phone model and software version.
3. The exact error message, or a screenshot.
4. Your phone's EID or IMEI. On iPhone, both appear under Settings, General, About.
5. What you already tried, and where you are now.

With that, support can see whether the code was used, whether it is tied to another device, or whether a replacement is needed. A screenshot of the error message is often clearer than a long description.

Our take: install early, and keep the proof

A traveler who lands and tries to install on weak airport Wi-Fi may have no way to fix a problem. Most of the problems above are easier to solve at home, where Wi-Fi is stable, the setup instructions are open, and nothing is rushing you.

Our approach is built around that. You choose your destination and plan at home. Each plan card shows the data, days, coverage and hotspot terms with the full price before you pay, plus the per-GB rate for fixed-data plans. After purchase, we send a QR code and a private trip page. Keep them private, and do not treat the QR code as a reusable backup unless the plan says so. Check your device with our phone check before you buy, not after. If you need more data later, a top-up goes onto the same eSIM without a new QR code, which avoids a second install and a second chance for something to go wrong.

If an install does fail, stay calm and change one thing at a time. Many failures are small and can be fixed without buying again. Contact support before you delete anything.

A plan you can set up before you fly

If you are still choosing a plan, pick the one that matches your route and install it at home. We offer regional plans for Europe, Asia, Africa and Latin America, as well as a Global plan for multi-region trips, in fixed-data and unlimited options. Every plan page shows its price, validity and terms before payment. You can see every destination on the WayfarerSIM destination list.

A pre-trip checklist that prevents most failures

1. Check that your phone supports eSIM and is unlocked.
2. Update the operating system.
3. Check what starts the plan's validity, then install the eSIM at home on stable Wi-Fi (on the day you fly if installation starts the plan).
4. Rename the line so you can find it quickly.
5. Keep your home line as the default for calls and texts, and set the travel eSIM for mobile data.
6. Keep the order email and setup details private and easy to find. A QR code is not a reusable backup unless the plan says so.
7. Turn on data roaming for the travel line when you arrive, and keep it off for your home line.
8. Test the connection on arrival. If it fails, run Step 2 before asking for help.

FAQ

Why is my eSIM stuck on "Activating"?

The phone has the profile but cannot register on a network. The usual causes are no stable internet during setup, an outdated OS, a line that is switched off, or no supported network at your location. Turn Airplane Mode on and off, switch the eSIM line off and on, restart, and update the software, as Apple's guide describes.

Why is my eSIM QR code not working?

The code may already have been used, the image may be cropped or blurry, or you may be scanning it from the same phone that needs it. Open it on another screen, or install with the manual details instead. On iOS 17.4 and later you can also tap and hold the code in the default email app or browser and choose Add eSIM.

Can I use the same QR code again after deleting my eSIM?

Often not. Many eSIM codes are single-use, so a deleted profile may need a replacement code from the provider. Check your settings first, since the profile may still be installed. If it is gone and the code fails, contact your provider with your order details.

Do I need Wi-Fi to activate an eSIM?

In most cases, yes. Apple states that a new iPhone needs Wi-Fi or a hotspot to set up an eSIM, with exceptions for some eSIM-only iPhones in certain countries and regions. Install at home on a reliable connection.

When should I contact support?

Contact your provider once you have tried stable Wi-Fi, a restart, Airplane Mode, the line toggle and manual entry on an updated, unlocked phone. Send the exact error message, your order number, and your phone's EID or IMEI so they can check the order.

Sources

• If you can't set up an eSIM on your iPhone, Apple Support
• Set up eSIM on iPhone, Apple Support
• Galaxy eSIM and supported network carriers, Samsung Support
• Use eSIM while traveling internationally with your iPhone, Apple Support

Recommended

• Avoid Losing Paid Days: Activate Your Travel eSIM with WayfarerSIM
• eSIM on Samsung Galaxy: Setup, Fixes and Travel Tips
• What should I do if my travel eSIM isn't working?
• Use an eSIM on a Locked Phone for Travel: Carrier Unlocks and WayfarerSIM Checks