How to Activate an eSIM on iPhone

Activating a travel eSIM on an iPhone is quick — most users are online within 1–2 minutes of scanning the QR code. This guide walks through the full process, from setup to troubleshooting.

Which iPhones support eSIM?

eSIM works on the following iPhone models:

  • iPhone 16, 16 Plus, 16 Pro, 16 Pro Max
  • iPhone 15 series and iPhone 14 series
  • iPhone 13 series and iPhone 12 series
  • iPhone 11, iPhone XS, iPhone XS Max, iPhone XR
  • iPhone SE (2nd and 3rd generation)

Important: Your iPhone must be carrier-unlocked to use a travel eSIM from a third-party provider. If you bought your phone on contract, check with your carrier first.

Step-by-step: activating a travel eSIM

1. Connect to Wi-Fi

Before you begin, make sure you're connected to Wi-Fi — the eSIM profile downloads over the internet.

2. Open Settings

Go to Settings → Cellular (or Mobile Data in some regions).

3. Add an eSIM

Tap Add eSIM (iOS 17+) or Add Cellular Plan (older iOS).

4. Scan the QR code

Your camera opens. Point it at the QR code from your confirmation email. If the code doesn't scan, tap Enter Details Manually and type the SM-DP+ address and activation code.

5. Name your plan

Label it something like "Turkey Travel" or "Europe eSIM" so it's easy to identify.

6. Choose your default line

  • Keep your Primary SIM for calls and SMS
  • Use the eSIM for cellular data

7. Turn on Data Roaming

When you land at your destination, go to Settings → Cellular → [your eSIM] → Data Roaming and toggle it on. This is essential — without it, the eSIM won't connect to foreign networks.

Using Dual SIM on iPhone

iPhones support Dual SIM Dual Standby, meaning both your physical SIM and eSIM can be active at once:

  • Primary line: calls, SMS, iMessage
  • Secondary line (eSIM): data while traveling

You can switch which line handles data under Settings → Cellular → Default Voice and Data.

Common issues and fixes

"Unable to activate eSIM"

  • Ensure Wi-Fi is connected during setup
  • Check that your iPhone is unlocked (Settings → General → About → Carrier Lock)
  • Restart your iPhone and try again

No data after landing

  • Confirm Data Roaming is ON for the eSIM line
  • Toggle Airplane Mode on for 10 seconds, then off
  • Make sure the eSIM (not your primary SIM) is selected for data

QR code won't scan

  • Improve lighting and hold the phone 15–20 cm from the code
  • Use the manual entry option with the SM-DP+ details from your email

Final tips

  • Install the eSIM before you fly, while on home Wi-Fi
  • Turn data roaming off until you land to avoid early activation windows
  • Take a screenshot of your QR code as backup
  • Delete old eSIM profiles you no longer need to free up slots

Ready to travel? Browse eSIM plans by destination →