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Tesco Mobile 4G Settings

📅 Last updated: 17 May 2026

UK mobile network guide: step-by-step instructions, APN settings and troubleshooting for Android and iPhone — updated 2026.

Tesco Mobile 4G Settings — UK APN Hub guide

Does Tesco Mobile support 4G?

Step Action What It Fixes
1Check Tesco Mobile network statusConfirms if issue is network-wide
2Toggle aeroplane mode on/offRe-registers SIM on Tesco Mobile network
3Restart your phoneClears temporary network errors
4Check Tesco Mobile APN settingsFixes incorrect data configuration
5Re-insert SIM cardFixes poor SIM contact issues
6Contact Tesco Mobile supportResolves account or SIM faults

Yes, Tesco Mobile has an active 4G network across the UK, with coverage continuing to expand. To use 4G on Tesco Mobile, you need a 4G-capable device, a Tesco Mobile SIM on a 4G-enabled plan, and to be within Tesco Mobile's 4G coverage area. Check coverage at the Tesco Mobile APN hub.

How to enable 4G on Tesco Mobile

On Android: Go to Settings → Network & Internet → Mobile Network → Preferred Network Type and select 4G/4G/3G/2G (auto) or the highest available option. On Samsung, go to Settings → Connections → Mobile Networks → Network Mode.

On iPhone: Go to Settings → Mobile Data → Mobile Data Options → Voice & Data and select 4G. If the option is not visible, your iPhone model or carrier plan may not support 4G on Tesco Mobile.

Tesco Mobile 4G APN settings

The APN settings for 4G on Tesco Mobile are the same as the standard mobile data APN. Your phone should use 4G automatically once it is enabled in your network settings. If 4G is not appearing in the status bar despite being in a covered area, try toggling aeroplane mode, restarting your phone or resetting your APN settings to the Tesco Mobile defaults.

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Fastest way to apply new APN settings
After saving, turn aeroplane mode ON for 10 seconds, then turn it OFF. This forces an immediate network re-registration — quicker than a full restart and equally effective.

Troubleshooting Tesco Mobile 4G problems

4G not showing: Check your plan includes 4G. Ensure your device supports 4G. Verify you are within Tesco Mobile 4G coverage. Go to network settings and set the preferred network type to include 4G.

4G slow: 4G speeds vary by location, network congestion and signal strength. Move to an area with a clearer line of sight to a mast. Ensure no background apps are consuming data. Contact Tesco Mobile if speeds are consistently poor in your area.

4G connected but no internet: Check APN settings are correct for Tesco Mobile. Reset network settings. Try switching to 4G, testing mobile data, then switching back to 4G.

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Tesco Mobile APN SettingsTesco Mobile MMS SettingsTesco Mobile eSIM SetupTesco Mobile Roaming SettingsTesco Mobile Data Not WorkingTesco Mobile 5G SettingsTesco Mobile No Service FixEE 4G APN Settings
Troubleshooting — Try Steps in This Exact Order STEP 1 Toggle Aeroplane Mode STEP 2 Full Restart your phone STEP 3 Delete & re-enter APN from scratch STEP 4 Reset Network Settings ⚠ STEP 5 Contact Network Support ⚠ Step 4 (Reset Network Settings) will delete: • All saved Wi-Fi passwords • All Bluetooth pairings and VPN configurations Note your Wi-Fi passwords before using this step. 💡 Most issues are caused by: • Wrong APN text (one typo stops everything) • APN saved but not selected (no filled circle) • Phone not restarted / aeroplane mode not toggled

Follow these steps in order — most issues are resolved by step 1 or 2

📚 Related Tesco Mobile Guides

Frequently Asked Questions

How do I contact Tesco Mobile UK support?

You can contact Tesco Mobile UK customer support through their official website, via live chat, by phone, or through their social media channels.

How do I check my Tesco Mobile signal strength?

Check your phone's signal bars in the status bar. For a detailed reading, go to Settings → About Phone → Status (Android) or dial *3001#12345#* (iPhone) to open Field Test mode.

What should I do if Tesco Mobile has no service?

If Tesco Mobile shows no service, try toggling Aeroplane Mode on and off, restarting your phone, and checking the Tesco Mobile coverage map for your area. If the issue persists, contact Tesco Mobile support.

How do I keep my number when switching to Tesco Mobile?

To keep your number when switching to Tesco Mobile, request a PAC code from your current provider by texting 'PAC' to 65075. You can then give this code to Tesco Mobile when you set up your new account.

Does Tesco Mobile support WiFi calling?

Many Tesco Mobile plans support WiFi calling. Check your Tesco Mobile account settings or the Tesco Mobile website to see if WiFi calling is available on your plan and how to enable it.