eSIM Not Working? 7 Common Issues and How to Fix Them

Meta description: Activated your eSIM but can't connect? Here are the 7 most common eSIM problems travelers face — and exactly how to fix them fast.

You've landed at the airport, activated your eSIM, and… nothing. No signal. No data. Don't panic — most eSIM issues are quick to fix once you know where to look. Here are the 7 most common problems and how to solve them.

1. eSIM Is Installed But Shows "No Service"

Why it happens: Your phone may not have switched to the correct eSIM profile, or the plan hasn't activated yet.

Fix:

• Go to Settings → Mobile/Cellular → SIM and make sure your TravelFi eSIM is selected for data.
• Toggle Airplane Mode on and off to force a network refresh.
• Wait up to 10 minutes after activation — some plans take a moment to go live.

2. Data Is On But Nothing Loads

Why it happens: Data roaming is disabled, or the APN settings are incorrect.

Fix:

• Enable Data Roaming in your mobile settings (this is required for eSIM plans abroad).
• Check that your APN settings match those provided in your TravelFi activation email.
• On iPhone: Settings → Cellular → Cellular Data Options → Data Roaming → ON.

3. QR Code Won't Scan

Why it happens: The camera can't read the code, or the eSIM has already been installed on another device.

Fix:

• Use your phone's native camera app, not a third-party scanner.
• Make sure you're scanning in good lighting.
• Note: each QR code can only be used once and on one device. If you've already scanned it, contact support for a replacement.

4. eSIM Disappeared After a Phone Reset or iOS/Android Update

Why it happens: Factory resets and some OS updates can wipe installed eSIM profiles.

Fix:

• Reinstall the eSIM using your original QR code (if unused) or request a re-issue from TravelFi support.
• Tip: Always back up your eSIM details before resetting your phone.

5. Can't Make or Receive Calls

Why it happens: TravelFi eSIM plans are data-only. Calls and SMS are not included.

Fix:

• Use data-based calling apps like WhatsApp, FaceTime, or Google Meet for voice calls.
• Keep your home SIM active in the second SIM slot for calls while using TravelFi for data.

6. eSIM Works in Some Areas But Not Others

Why it happens: Coverage varies by region and local network partner.

Fix:

• Check the coverage map for your destination on the TravelFi website.
• Manually select a different local network: Settings → Mobile/Cellular → Network Selection → Manual.
• In remote areas, coverage gaps are normal — switch to a local Wi-Fi hotspot when available.

7. Phone Says "eSIM Not Supported"

Why it happens: Not all devices support eSIM, and some carrier-locked phones block eSIM functionality.

Fix:

• Check if your device is eSIM-compatible (most iPhones from XS onwards and many Android flagships are).
• If your phone is carrier-locked, contact your home carrier to unlock it before using an eSIM.
• Visit our Device Compatibility Guide to confirm your model is supported.