If your eSIM is not working abroad, the cause is usually a setting on the phone rather than a broken plan. Turn on data roaming for the travel line, make sure that line is the one chosen for mobile data, and restart the phone. If you still see no service after that, check the network, then the profile, and only then contact the provider's support with your ICCID and screenshots.
Key takeaways
- Most cases of a travel eSIM with no internet come down to data roaming being off or the wrong line being picked for mobile data.
- Work from cheap fixes to expensive ones: settings first, network second, profile last.
- Never delete the eSIM profile to "reset" it. A deleted profile may not reinstall.
- If data stays off after you contact support, some providers review refunds or offer a replacement. TonMobile documents this in its terms.
Quick checks before you change anything
Start with fixes that cannot make things worse. They solve most cases of "eSIM activated but no data".
Confirm the travel line is switched on
Phones that hold two lines can keep one of them turned off. Open the line list and check that the travel eSIM is enabled, not just installed.
Turn on data roaming for the travel line
A travel eSIM rides on partner networks in each country, so the phone treats it as roaming. If data roaming is off for that line, you will see bars but get no internet.
Pick the travel line for mobile data
The phone sends data over one line at a time. If your home SIM is still selected for mobile data, the travel plan sits idle while your home carrier may bill you for roaming.
Toggle airplane mode, then restart
Turning airplane mode on for a moment, then off, forces the phone to search for networks again. If that does nothing, a full restart clears most stuck connections.
Tip
Connect to airport Wi-Fi first if you can. Then you can check remaining data in the provider's app and message support while you work.
World data
Phone settings that block data
If the quick checks did not help, go through the cellular settings line by line. Menu names differ between iPhone and Android; the switches are the same.
iPhone
Open SettingsCellular and look at the list of lines. Tap the travel eSIM and confirm three things: the line is turned on, Data Roaming is on, and the line is set as Cellular Data on the main Cellular screen.
Also check SettingsCellularCellular Data and turn off the option that lets the phone switch data between lines. With it on, the iPhone can fall back to your home line and run up roaming charges there.
World data
Android
On most Android phones the line list sits under SettingsConnectionsSIM manager or SettingsNetwork and internetSIMs. Open the travel eSIM, make sure it is enabled, and switch on roaming for it.
Then set the preferred line for mobile data to the travel eSIM. Some Android phones also show an access point setting (APN). Leave it as it is unless your provider's instructions give you a specific value.
Settings that quietly cut data
- Low data mode or data saver is on for the travel line.
- A VPN app is connected and failing to reach its server.
- Network mode is locked to one generation (for example 5G only) where the partner network does not offer it.
- Date and time are set manually and are wrong after the time zone change.
Warning
If your home SIM stays enabled for data with roaming on, your home carrier can charge you even while the eSIM is installed. Keep the home line for calls and SMS only, with its data roaming off.
Network and coverage problems
Travel eSIM resellers are not network operators. Your data is carried by partner networks in each country, so a problem can sit with the local network rather than with your phone or plan.
When the phone shows "No service" or "SOS only", turn off automatic network selection for the travel line and pick another network by hand. If one network refuses you, another partner may accept the plan.
Then check coverage. A single-country plan stops at the border, and a regional plan covers only the countries it lists. If you are on a route with several stops, our guide to data for a multi-country trip explains how to match the plan to the itinerary, and round-the-world eSIM covers longer journeys.
| Problem | Likely cause | Fix to try |
|---|---|---|
| Bars showing, no internet | Data roaming off for the travel line | Turn on data roaming for the eSIM only |
| Internet works, but billed by home carrier | Home line selected for mobile data | Set the travel eSIM as the data line |
| No service at all | Phone not registered on a partner network | Airplane mode, restart, then manual network selection |
| Worked yesterday, not today | Data used up or plan validity ended | Check remaining data and validity in the app; top up |
| Works in one country, not the next | Country not covered by the plan | Check the coverage list; buy a regional or global plan |
| Slow speed on unlimited plan | Speed reduced after a usage threshold | Read the plan terms; wait for the period to reset or switch plans |
| eSIM line missing from settings | Profile not installed or removed | Do not reinstall blindly; contact support |
Unlimited plans deserve a note. Several providers reduce speed after a set amount of use. TonMobile's terms list this for its unlimited plans, and Holafly describes a fair usage policy that may slow speed for up to one day. Slow is not broken.
eSIM profile problems
An eSIM is a SIM profile downloaded onto a chip built into the phone. When the line does not appear in settings at all, or shows an error instead of a carrier name, the profile itself is the suspect.
The profile never installed
If you bought the plan but the line is missing, the install did not finish. Open the provider's app or web account and check whether the eSIM shows as delivered. Some apps let you view the QR code again or send it to another device from the order screen. If the order shows as installed but the phone disagrees, contact support.
Do not delete the profile
Deleted profiles may not come back
Removing an eSIM from the phone is not the same as turning it off. A travel eSIM may not install a second time from the same QR code. If you have already deleted the profile, do not keep trying to scan it. Contact the provider's support and ask for a reinstall or a replacement.
To pause the line, turn it off in the line list instead. That keeps the profile on the phone. Our glossary explains terms you will meet here, such as eUICC, ICCID and APN.
When to contact support
Contact support once you have worked through settings, network selection and the profile check, or straight away if the profile is missing or deleted. With some providers, the refund clock starts when you get in touch.
What to send
- The ICCID of the eSIM, found in the line details in your phone's settings.
- Your device model.
- Screenshots of the eSIM settings: line on, data roaming on, travel line set for data.
- The country you are in and what the phone shows (no service, bars but no data, slow speed).
A worked example: TonMobile's support rules
Provider rules differ, so read your own provider's terms. TonMobile is a useful example because its terms of service spell the process out. A refund request needs the ICCID, the device model and screenshots of the eSIM settings, which is the same list as above.
Contact support during working hours
TonMobile support works 06:00-23:00 UTC+2, through the platform or by email.
Let support try to fix it
Instead of a refund, TonMobile may offer re-activation, a free new eSIM or an alternative local operator.
Ask for a refund review if data stays off
If data cannot be enabled for over 4 hours after contacting support, the case qualifies for refund review. Other qualifying cases include a device that does not support eSIM, a network unavailable in declared coverage due to the provider, and an eSIM not delivered and not fixed within 4 hours.
Mind the deadline
The request must be sent before the package expires and no later than 180 days after purchase. Card refunds can take up to 14 calendar days; electronic payments and crypto up to 5 business days.
Paid with crypto?
TonMobile's terms say crypto refunds can go back in USDT or Bitcoin, or to a USD balance. Our guide on how to pay for an eSIM with crypto covers this in more detail.
One more thing to rule out before you write: if the problem is a missing bank SMS rather than data, that is not an eSIM fault. Data-only travel plans have no phone number, and your home SIM is what receives SMS. See travel eSIM, phone numbers and SMS.
If you are choosing a provider for the next trip, our eSIM provider rating compares support terms alongside coverage, and the methodology page explains how we score them. For the basics, start at the global eSIM guide.
FAQ
Why is my eSIM not working abroad when it installed fine at home?
Installing the profile and connecting to a network are separate steps. Abroad, the travel line needs data roaming turned on and must be chosen as the mobile data line. Restart the phone after changing both settings.
Why does my travel eSIM show bars but no internet?
The phone has found a network but is not sending data over the travel line. The usual causes are data roaming switched off for that line or the home SIM still set for mobile data. Fix both, then toggle airplane mode.
Should I turn on data roaming for an eSIM?
Yes, for the travel eSIM line. Travel eSIM data is carried by partner networks, so the phone treats it as roaming. Keep data roaming off on your home SIM to avoid charges from your home carrier.
What does eSIM no service mean?
It means the phone is not registered on any partner network for that line. Try airplane mode, a restart and manual network selection. If you are outside the plan's coverage, the line will not connect until you buy a plan for that country or region.
Can I delete and reinstall my eSIM to fix it?
Avoid it. A travel eSIM may not install again from the same QR code, so a deleted profile may not come back. Turn the line off instead, and contact support if the profile is already gone.
Can I get an eSIM refund if data never works?
It depends on the provider's terms. TonMobile, for example, reviews a refund when data cannot be enabled for over 4 hours after contacting support, if the request comes before the package expires and within 180 days of purchase. It may offer a replacement eSIM or another operator instead.