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How to Reset Network Settings iPhone

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How to Reset Network Settings iPhone guide with steps, settings, troubleshooting, FAQs and related UK mobile network fix

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Why is your mobile network not working?

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

The common causes of failure are an incorrect APN, a nearby outage, a loose SIM, or software glitches — each addressed below.

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Troubleshooting checklist

Top to bottom works better here than skipping to the final step

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

Step 1 — Check your network status

It's worth checking the UK APN Hub or Downdetector for a local outage first, since no setting change helps during one.

📶

Troubleshooting checklist

Working from the top down beats jumping straight to the end

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

Step 2 — Toggle aeroplane mode (How to Reset Network Settings iPhone)

Switch Aeroplane Mode on and off via the notification shade, ten seconds apart, to reconnect to the nearest mast and clear temporary faults.

📶

Troubleshooting checklist

It's more effective to go top to bottom than skip to the last step

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

Step 3 — Restart your phone (How to Reset Network Settings iPhone)

Restart fully by holding power and selecting Restart — this clears the modem cache and re-registers the SIM more thoroughly than aeroplane mode.

📶

Troubleshooting checklist

Go from the top rather than jumping ahead to the final option

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

Step 4 — Re-seat the SIM card (How to Reset Network Settings iPhone)

Power the phone down completely, eject the SIM tray, check the gold contacts for dirt, clean gently, and reseat firmly before powering back on.

📶

Troubleshooting checklist

Top-down is the better approach here instead of skipping to the end

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

Step 5 — Check APN settings (How to Reset Network Settings iPhone)

Strong signal but no data is a classic APN symptom — check the values against the UK APN Hub's recommendations.

📶

Troubleshooting checklist

Working through from the top beats heading straight for the last step

Step 1Check APNStep 2Select APNStep 3Toggle flight modeStep 4Restart phoneStep 5Test data
!
Reset Network Settings will delete all saved Wi-Fi passwords
This step also removes all Bluetooth pairings and VPN profiles. Make a note of your Wi-Fi passwords before continuing. Only use this as a last resort after all other steps have failed.

Step 6 — Reset network settings for How to Reset Network Settings iPhone

Android: Settings → General Management → Reset → Reset Network Settings restores default APN and clears Wi-Fi/Bluetooth, leaving apps and data untouched.

iPhone users can reset through Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings for defaults restored on restart.

📶

Troubleshooting checklist

Go in order from the top; skipping to the end tends to miss things

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

Step 7 — Reach out to customer support on iPhone

Still no fix? Contact customer support, with the account number and IMEI ready, since it could be account, SIM or local.

Related guides

Lyca Internet Not WorkingMobile Data Not Working on iPhoneMobile Data Not Working on AndroidLyca APN Settings iPhoneMMS Not Sending on iPhoneBest APN Settings for Roaming5G Not Working on SamsungSIM Card No Service Fix
📶

Troubleshooting checklist

Top to bottom is more thorough than jumping straight to the last step

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

Frequently Asked Questions About How to Reset Network Settings iPhone

How do I contact your network UK support?
You can contact your network UK customer support through their official website, via live chat, by phone, or through their social media channels.
How do I check my your network 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 your network has no service?
If your network shows no service, try toggling Aeroplane Mode on and off, restarting your phone, and checking your network coverage map for your area. If the issue persists, contact your network support.
How do I keep my number when switching to your network?
To keep your number when switching to your network, request a PAC code from your current provider by texting 'PAC' to 65075. You can then give this code to your network when you set up your new account.
Does your network support WiFi calling?
Many your network plans support WiFi calling. Check your network account settings or your network website to see if WiFi calling is available on your plan and how to enable it.