After landing, the first checks are whether the travel line is active, whether that line is selected for cellular data, whether roaming is enabled for that line, and whether the phone is allowed to use the local network. For iPhone, Google Pixel, and Samsung phones, the exact menu path and available APN or network options vary by device, carrier, and plan, so use the steps below only where your provider’s documentation matches them.
Check that the eSIM line is on and selected for data
On iPhone, Apple's international eSIM guidance says you should choose between using the travel eSIM only or using the travel eSIM with your current eSIM after activation, and it notes that international roaming works the same way as with a physical SIM.
On Pixel, Google's Pixel eSIM guidance says dual SIM and eSIM work only with some mobile carriers, so the line must be supported by both the phone and the carrier before travel data will work.
On phones with more than one line, confirm that the travel eSIM is the line selected for cellular data and that the home line is not the one carrying your data session.
Turn roaming on for the travel line
For iPhone travel use, Apple says many carriers offer prepaid and postpaid plans for international travelers and that roaming on those plans follows the carrier’s own rules and destinations.
If your plan is meant to work abroad, make sure roaming is enabled for that line and that the plan itself includes the destination country or region. If your carrier does not document roaming for that plan, do not assume it is included.
- Keep the travel eSIM active after landing.
- Use the travel line for cellular data if that is the line you bought for travel.
- Check whether your carrier documents roaming, destination coverage, or country inclusion for the plan.
Refresh the connection with airplane mode and network selection
Apple says an iPhone must be connected to Wi-Fi or a hotspot to activate an eSIM, though eSIM-only models in some countries or regions can activate without Wi-Fi. After landing, a short airplane-mode refresh is commonly used to force the phone to reconnect to the local network once the line is active.
If the phone still does not attach to service, switch network selection if your device and carrier documentation expose that setting. If the carrier does not document manual network selection for the line, leave it on the default automatic setting.
Use the supported network and carrier for the phone
Google says Pixel eSIM and dual-SIM support depends on the carrier, so a working eSIM also depends on whether the carrier supports the device and the line type you are using.
Apple says international eSIM service depends on a wireless carrier or worldwide service provider that supports eSIM, so the phone alone is not enough if the provider does not support that destination or line.
- Check that the destination carrier or travel-data provider supports the phone model.
- Check whether the line is a roaming plan, a local prepaid plan, or a travel-data plan.
- Do not assume a carrier-locked phone can use every travel eSIM.
Follow provider-specific APN instructions only when documented
APN details are provider-specific, and the provider must document the exact values to enter. If the provider does not publish APN settings for the line, do not guess the APN name, username, or password.
If your travel provider publishes APN instructions, use those exact values and the menu path it gives for your phone. Where the provider does not document APN editing for a line, omit the APN change and keep the carrier default.
- Use only the APN values published by the provider for that plan.
- Match the exact menu path given for iPhone, Pixel, or Samsung.
- If APN editing is not documented for the line, leave the default settings in place.
Device differences to check before you leave the airport
Apple’s guidance for travel eSIM use is centered on iPhone line selection, carrier support, and international roaming behavior. Google’s Pixel eSIM guidance is centered on whether the carrier supports eSIM and dual SIM on that model.
Samsung-specific behavior, carrier lock behavior, and provider APN steps vary by model, region, and carrier documentation, so they should be checked in the phone’s own settings guide or the carrier’s help pages before travel.
If the line still does not work after landing, recheck the active line, data line, roaming setting, supported network, airplane-mode refresh, and any provider APN instructions in that order. If any step is not documented for your phone or plan, leave it unchanged rather than guessing.
For a provider-specific next step, review travel eSIM troubleshooting.
More eSIM resources: Browse our eSIM guides and troubleshooting resources for compatibility, setup, travel-data and account-safety advice.
Related reading: Complete eSIM Guide: Compatibility, Setup, Travel and Troubleshooting, What Is SIM Card Not Provisioned, and How to Transfer an eSIM When Changing Phones.
