Short answer: on a new iPhone, use the eSIM transfer flow during setup or in Settings > Cellular. For a travel eSIM, install the QR code before departure and set it as the data line. Keep the old phone until the new one confirms service.
Transfer an eSIM to a new iPhone
- Update both iPhones to a current iOS version and connect to Wi-Fi.
- Place the new iPhone near the old one and start the transfer during setup.
- Choose “Transfer from another iPhone” when asked about cellular.
- Confirm on the old phone and wait for the carrier to approve.
- Verify calls, SMS and data on the new phone before erasing the old one.
Carrier support varies. Some operators allow instant transfer; others require a verification code or a support call. If the option does not appear, contact the carrier rather than deleting the old eSIM.
Install a travel eSIM from a QR code
- Open Settings > Cellular > Add eSIM.
- Choose “Use QR Code” and scan the code from another screen.
- Label the plan with the destination.
- Set it as the data line and enable data roaming.
- Turn off “Allow Cellular Data Switching” to protect the home line.
Install while you have a stable connection. A travel eSIM needs a network once to download the carrier profile.
Dual-SIM settings that prevent surprise charges
| Setting | Recommended value |
|---|---|
| Mobile Data | Travel eSIM |
| Default Voice Line | Home SIM |
| Data Roaming (travel eSIM) | On |
| Data Roaming (home SIM) | Off |
| Allow Cellular Data Switching | Off |
Troubleshooting
“eSIM Not Supported”: the phone is likely carrier-locked or the model lacks eSIM support. Check the carrier lock status in Settings > General > About.
No service after installation: restart, confirm roaming, then select a network manually. Our eSIM not working guide covers the full sequence.
QR code already used: request a new activation code. Most codes cannot be installed twice.
Before you erase the old phone
Confirm the new phone can make a call, receive an SMS and load a web page on cellular. Keep the old device for a few days if the transfer involved a carrier approval step.
Choose a plan sized to your trip in the eSIM store, and review the security checklist before you travel.
Frequently asked questions
Can I transfer an eSIM between iPhone and Android?
Usually not directly. Install a new profile on the other device or ask the carrier for a transfer.
Does an iPhone eSIM work with a physical SIM?
Yes. Dual-SIM mode lets you keep the physical home SIM for calls while the eSIM handles data.
Why is my eSIM option missing?
The phone may be carrier-locked or an older model without eSIM support. Check carrier lock status and the model specification.
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