You've just landed, you turn off airplane mode, and... nothing: no data. When your eSIM doesn't work upon landing, it can almost always be fixed in a couple of minutes by adjusting three settings. This guide walks you through it step-by-step, from the quickest solution to the least common, to get you back online without stress at a foreign airport.
Quick 3-step solution
In 90% of cases, the eSIM doesn't connect upon landing due to a setting, not a plan failure. Do this in order: activate data roaming on the eSIM line, set it as your primary data line, and restart your phone. This usually connects it in seconds.
Before you touch anything, take a breath: your plan is fine, and your data is still there. Most likely, your phone doesn't yet know it should use the eSIM on the new country's network. This table summarizes the most common symptoms and their direct fixes:
| Symptom | Probable cause | Solution |
|---|---|---|
| Coverage but no internet | Roaming deactivated | Activate roaming on eSIM |
| No signal bars | Network not selected | Restart or manually select network |
| Data from your Spanish SIM | Incorrect data line selected | Set eSIM as data line |
| "eSIM installed" grayed out | Profile not activated | Activate it or check APN |
In practice, the first or second fix is almost always enough. If, after these three basic adjustments, you're already online, perfect. If not, keep reading: below we break down each one and less common solutions. And if you want the general context, we have a guide on why your eSIM doesn't connect abroad.
Activate data roaming
This is the number one issue. Even if the eSIM is for the country you've traveled to, technically your phone is "roaming" compared to your home settings, and many phones have this option disabled by default to avoid unexpected roaming charges.
Data roaming is what allows the eSIM to connect to the local towers at your destination. Without it activated, you'll see the network but won't have internet. Activate it like this, specifically on the eSIM line (not on your Spanish SIM):
- iPhone: Settings > Cellular > tap on the eSIM line > turn on "Data Roaming".
- Android: Settings > Connections (or Network & internet) > Mobile networks > select the eSIM > turn on "Data Roaming".
Beware: activating roaming on your travel eSIM is safe and won't generate extra charges, because you paid for the plan in advance. What you should avoid is leaving roaming activated on your Spanish SIM, which would incur expensive roaming charges.
If you need details by operating system, we explain it all in how to activate data roaming.
Choose the eSIM as the data line
The second most common issue: your phone keeps trying to use your Spanish SIM for data instead of the eSIM. Since you have dual SIM, you need to explicitly tell it which one to use for internet at your destination, or it won't connect to the correct network.
Go to your mobile data settings and, where it says "Mobile Data" or "Default Data Line," select your travel eSIM. While you're at it, disable data for your Spanish SIM to avoid accidentally incurring roaming charges from your carrier. The change is instant and doesn't delete anything.
Take the opportunity to check that the eSIM is activated (not just installed): in the list of lines, it should appear turned on, not grayed out. If it appears installed but without signal, check the specific guide for eSIM installed but no data. And if you don't see it in your iPhone settings at all, review what to do if your eSIM doesn't appear in settings.
Restart and manually select network
If roaming and the data line are set correctly but you still have no connection, restart your phone. When it boots up, the phone will search for networks from scratch and usually connect to the one in the country. It's the most boring trick, but also the one that solves many cases.
If it still doesn't work after restarting, try to manually select the network. By default, the phone chooses the network "automatically," but sometimes it gets stuck searching. Force the search like this:
- Go to Settings > Cellular > eSIM line > "Network Selection".
- Disable the "Automatic" option.
- Wait for the list of local operators in the country to appear.
- Choose one of the major ones (you'll see them with their local name) and wait a few seconds.
Try one; if it doesn't connect, go back and try another. This method unblocks the classic "I have coverage but no internet" problem. If the problem is that there's simply no signal, we have a guide for eSIM with no service.
Check the APN
The APN is the setting that tells your phone how to connect to the internet via the mobile network. Normally, it configures itself, but on some Android models, you have to enter it manually for the eSIM to work. If you've gotten this far without success, this is the next thing to check.
You'll find the correct APN in your eSIM purchase email or the provider's instructions. To enter it, go to Settings > Cellular > eSIM line > "Mobile Network" > "Access Point Names (APN)" and add the one indicated. On iPhones, it's rarely necessary to touch it; on Android, the APN is often the missing piece. The complete step-by-step is in how to configure your eSIM's APN.
After saving the APN, restart once more. With the correct APN and roaming activated, the connection should appear. If data still isn't loading, review why your eSIM data isn't working.
When to contact support
If you've tried roaming, data line selection, restarting, manual network selection, and APN, and you still don't have internet, it's time to contact support. A good eSIM provider offers support in English and can check if your plan was activated correctly or resend your profile. Don't spend hours struggling alone.
Before writing, have this information handy so they can help you quickly: phone model and operating system, country you are in, whether you see the network in settings, and what steps you have already tried. With that, support usually identifies the problem in the first response.
Tip while you wait: connect to the airport or a cafe's Wi-Fi to chat with support and check maps. This way, you can solve the problem without being left incommunicado upon arrival.
Remember that many problems can be avoided by installing the eSIM at home in advance, not upon landing. If you're still not entirely clear, review how to activate your eSIM before your next trip.
Frequently asked questions
Why does my eSIM have coverage but no internet?
This usually happens because data roaming is disabled on the eSIM line, or because your phone is using your Spanish SIM for data instead of the eSIM. Activate roaming on the eSIM, set it as the data line, and restart: this resolves most of these cases in a couple of minutes.
Do I need to activate the eSIM before landing?
It's not mandatory, but it's advisable to install it at home with Wi-Fi. What you do upon landing is "turn it on": turn off airplane mode, activate roaming on its line, and select it for data. The installation (scanning the QR) is best done beforehand, as it requires Wi-Fi.
Does restarting my phone delete the eSIM?
No. Restarting your phone does not delete the eSIM or its data; it simply makes it search for networks again when it starts up, which often resolves the lack of connection. You can restart as many times as you want without fear of losing your plan or having to reinstall it.
What if no network appears in the manual selection?
You might be in an area with poor coverage (a basement, a parking lot) or your phone might still be searching. Move to an open area of the airport, wait a minute, and try again. If no local network still appears, restart and, if it persists, contact support.
Could it fail because my phone is carrier-locked?
Yes. If your phone is locked to a Spanish carrier (not "unlocked"), it may reject the travel eSIM. Make sure your phone is unlocked before traveling. If you bought your phone on an installment plan with a company, it might still be locked until you finish paying for it.
Conclusion
When your eSIM doesn't connect upon landing, it's almost never a plan failure: it's a setting issue. Activate roaming on its line, set it as data, restart, and, if necessary, check manual network selection and APN. With these steps, you'll get internet back in minutes. Install your eSIM before you travel and arrive connected to avoid surprises on your next arrival.
