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Troubleshooting Global eSIM Connectivity

Troubleshooting issues with your Global eSIM

Written by Ciara Bellisio

Having trouble getting connected? Most Global eSIM issues are solved in under a minute. Work through the checks below in order.

First things first: Your Global eSIM provides data only, and there are no APN settings to configure — the new eSIM is fully plug-and-play. In the UK and EU, use your CyberTel UK SIM for data; your Global eSIM is for data in the rest of the world.

“No Service” or No Data

If your Global eSIM isn’t connecting, work through these in order — the first few fix the vast majority of cases.

Quick fix — try these in order:

  1. Check you’re in one of our 207 destinations. If you’ve travelled somewhere just outside our coverage, the Global eSIM won’t pick up a local network. If you’re not sure, get in touch and we’ll confirm.

  2. Make sure your CyberTel Global eSIM is selected as your data line, and that Data / Mobile Data Switching is ON.

  3. Turn Airplane Mode on, wait 10 seconds, then turn it off again.

  4. Still not connected? Restart your phone — this prompts it to search for local networks again.

  5. If it’s still not working, try turning Data Roaming ON for your Global eSIM to see if it makes a difference — it isn’t normally needed, but it’s worth a try:

    1. iPhone: Settings → Mobile Data → CyberTel Global → Data Roaming → ON

    2. Android: SIM settings → CyberTel Global → Data Roaming → ON

Give it a moment: After landing in a new country or changing these settings, it can take a minute or two for your phone to find and connect to the strongest local network. If it doesn’t connect straight away, wait briefly and try the Airplane Mode toggle again.

Common Causes at a Glance

  1. You’re outside our 207 destinations — the Global eSIM can only connect where we have coverage.

  2. Global eSIM isn’t set as your data line — check it’s selected for data, with data switching on.

  3. Phone needs a refresh — a quick Airplane Mode toggle or restart usually does it.

  4. Data Roaming — not normally required, but worth switching on to test if you’re still stuck.

Still Not Working?

If you’ve worked through the steps above and you’re still not connected, get in touch and we’ll sort it out with you. It helps if you can tell us your device model, the country you’re in, and what your Global eSIM is currently showing.

Our team is here 7 days a week to help you stay connected.

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