Install a travel eSIM on iPhone

Control mobile-data switching

Automatic switching can move data to the home line when the travel line is weak. Disable it if this could cause home-carrier roaming charges.

Troubleshoot without deleting

Confirm the line is enabled, required roaming is on and network selection matches the instructions. Do not delete a single-installation profile while seeking support.

Prepare iPhone before scanning anything

Use stable Wi-Fi, confirm the exact device is unlocked and eSIM-compatible, and keep the activation instructions private. Adding the profile and starting its validity are not always the same event, so read the activation rule before installing ahead of travel.

Label home and travel lines clearly. Select the travel eSIM for mobile data, review automatic data switching and understand any home-line call or SMS roaming charges.

Connect and test without deleting the profile

At the destination, enable the line and data roaming when instructed, allow time for registration, then test ordinary browsing. If it fails, check the selected data line, APN and network selection in the provider's stated order. Do not delete first: many QR profiles are intended for one installation.

Before leaving for your destination, check that the phone is unlocked and eSIM-compatible. Match the plan's your destination coverage, data, validity and hotspot terms to the trip, and save your accommodation address and first transfer offline.

Prepare a recovery path before travel

Keep the order reference, provider instructions and support route somewhere accessible if the primary phone has no data. Save any manual activation values privately and note whether the profile is transferable. If installation succeeds but service does not, collect the exact error and displayed network before changing settings.

A restart or short airplane-mode cycle is safer than random APN edits. Manual network selection should follow the provider's supported-network list. Deleting the eSIM is a last step performed only after support confirms that reinstallation is possible.

Test the correct functions

Open a normal webpage, retrieve a map and confirm which line is consuming data. Calls, SMS and hotspot should be tested only when the plan says they are included; successful mobile data does not prove those separate services.

Keep both iPhone lines easy to recognise

Name the home line Home and the travel line ICCeSIM or with the destination. Select the intended line under Cellular Data, review Allow Cellular Data Switching, and follow the plan's instructions for Data Roaming. These controls reduce the risk of accidentally using the wrong line.

Do not remove the eSIM during ordinary troubleshooting. First check plan status, the selected data line, roaming, APN, airplane mode and a restart. Some activation codes cannot be reused after a profile is deleted.