What Is eSIM and How It Works

About your network eSIM in the UK (What Is eSIM and How It Works)

Device	your network eSIM Support	Min. iOS / Android Version
iPhone 16 / 15 / 14	✓ Supported	iOS 16 or later
iPhone XS / XR / 11 / 12 / 13	✓ Supported	iOS 12.1 or later
Samsung Galaxy S24 / S23 / S22	✓ Supported	Android 11 or later
Google Pixel 7 / 6 / 5 / 4	✓ Supported	Android 10 or later
iPhone 8 / X and older	✗ Not supported	Physical SIM only

Publishing order: 478 • Cluster 42: Advanced Authority

This detailed What Is eSIM and How It Works guide covers the latest settings, troubleshooting methods, and fixes for common mobile network problems.

For a misbehaving UK mobile, configuration, signal and data troubleshooting are covered here.

For no signal, slow data, hotspot issues, a locked SIM, roaming failures or a bad APN, start with the basics below.

A short power cycle followed by a brief wait for reconnection typically does the trick.

Check that the SIM is active and data/roaming are on within the plan's coverage.

Mobile internet settings can confirm whether the APN profile is intact and correctly saved.

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Troubleshooting checklist

Fastest to most hands-on — that's the order here

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data

Setting up your network eSIM on your device (What Is eSIM and How It Works)

Review the APN via settings — Mobile Network or Cellular Data — save, reboot, and check browsing, MMS and hotspot where supported.

Internal guides to check next

UK APN Settings Troubleshooting Why Is My Mobile Data Not Working How to Reset APN Settings What Are APN Settings APN Settings Explained How Roaming Works Back to full blog order

Frequently Asked Questions About What Is eSIM and How It Works

How do I activate my your network eSIM?

To activate your network eSIM: order the eSIM from your network, then scan the QR code from your email in Settings → Mobile Data → Add eSIM (iPhone) or Settings → SIM Manager → Add SIM (Android).

Which phones support your network eSIM in the UK?

your network eSIM works on iPhone XS and later, Samsung Galaxy S20 and later, Google Pixel 3 and later, and most modern Android phones released after 2020.

Can I use your network eSIM and a physical SIM at the same time?

Yes, most modern phones support dual SIM — one physical SIM and one eSIM. You can use your network eSIM alongside another carrier's physical SIM.

What do I do if my your network eSIM QR code is not working?

If your network eSIM QR code fails, contact your network customer support to request a new QR code. Make sure you are scanning it on the device you want to activate — eSIM QR codes are single-use.

Does your network eSIM support 5G?

Yes, your network eSIM supports 5G on compatible devices. Ensure your phone is 5G-capable and your network plan includes 5G access.