Support

We're here to get you connected. Most questions are answered below — if you're still stuck, email us at support@ternsim.com and we'll reply within 24 hours.

Before you buy: is your phone compatible?

Your device must be eSIM-capable and carrier-unlocked. Most iPhones (XS and newer) and recent Android flagships (Pixel, Samsung Galaxy S/Note/Z, and others) support eSIM. On iPhone you can check with Settings → General → About → look for a EID number.

How installation works

• After payment, your eSIM QR code and activation details appear instantly and are emailed to you.
• Scan the QR from another screen, or on the same device add it manually under Settings → Cellular/Mobile → Add eSIM.
• Turn on data roaming for the TernSIM line when you arrive at your destination.

Important: install once

An eSIM can only be installed a single time. If you delete it from your device, it cannot be reinstalled and any remaining data is lost. Keep it installed for the whole trip — you can simply turn the line off when you don't need it.

My eSIM won't connect

• Make sure Data Roaming is enabled for the TernSIM line.
• Set the TernSIM line as your Cellular Data line.
• Check the APN matches the one in your activation email, if provided.
• Toggle Airplane Mode on and off, or restart the phone, to re-scan for networks.

Still need help?

Email support@ternsim.com with your order number (in your confirmation email) and a short description of the issue. Screenshots help us resolve things faster.