Tesco Mobile Not Registered on Network? (Easy Fix!)

Have you ever tried making a call just to see Tesco Mobile not registered on network?

Getting the not registered on network error can be very frustrating. It often indicates that your device cannot connect to your carrier’s network. 

“Commonly, a weak signal or SIM card issue can cause problems with your Tesco Mobile service. To address this, ensure your phone has proper network coverage and clean the contacts of your SIM card.”

Here are our other suggestions on what you can do to fix the issue!

8 Solutions to Fix Tesco Mobile Not Registered on Network Error

We listed eight solutions that you can try in order. Go about them from the easiest to the most complex to help you manage your time and energy effectively!

#1: Ensure Your Phone’s WiFi is Switched Off

If your phone has trouble connecting to your network, your WiFi may be causing interference. To rule this out, try turning it off and see if that improves your connection.

Here are the steps to follow:

iPhone

Using the Settings app

1. Open the Settings app.
2. Scroll down and tap on WiFi.
3. Toggle the switch next to WiFi to the left to turn it off. 
4. Wait a few seconds.
5. Try connecting to your network again and see if the issue is resolved.

Using the Control Center

1. Swipe up from the bottom of the screen to open the Control Center.
2. Tap on the WiFi icon to turn it off. 

Android

Using the Settings app

1. Open the Settings app.
2. Tap on Network & Internet.
3. Tap on WiFi.
4. Toggle the switch to the left to turn off the WiFi.

Using the Notification Shade

1. Swipe down from the top of your display to open the Notifications panel.
2. Select the WiFi icon to turn it off. 

Note: You can also use third-party apps, like WiFi Kill and WiFi Analyzer, to turn off WiFi on your iPhone and Android device. 

#2: Verify Your Phone’s Network Coverage

Tesco Mobile uses O2’s network, which means they have the same coverage and signal strength in specific areas.

If you have signal issues, the best thing to do is check your postcode on Tesco Mobile’s official website.

1. Go to https://www.tescomobile.com/.
2. Click on the Coverage tab.
3. Enter your postcode or address in the search bar.
4. Use the interactive map to see the coverage overlay.

Note: The overlay will display various available coverage levels in your area and the estimated signal strength for each. 

#3: Remove and Clean Your SIM Card’s Contacts

If you see the error message Tesco Mobile phone not registered on network, your SIM card may either be dirty or loose.

This can cause dropped calls, poor signal strength, and slow data speeds.

To fix this, remove your SIM card and give it a gentle wipe with a clean, dry cloth.

Here are the steps to follow:

1. Turn off your phone. 
2. Remove the SIM tray using a pin or paper clip. 
3. Take out the SIM card.
4. Gently wipe the SIM with a dry cloth.
5. Inspect the SIM for damages.
6. Put the SIM card back onto the tray. 
7. Insert the tray into your phone. 
8. Turn on your phone and see if the error is gone. 

 Pro Tip: For more stubborn dirt and grime, use a small amount of rubbing alcohol on a soft cloth to clean your SIM card. Allow it to dry completely before reinserting it into your device.

If none of these steps resolve your issue, you’ll want to look at some of your phone’s settings. Proceed to the steps below for advanced steps.

#4: Manually Select Tesco Mobile as Your Phone’s Carrier

Another possible reason you’re experiencing the not registered on network error is your device might have automatically switched to a different carrier. To fix this, manually select Tesco Mobile as your carrier. 

iPhone

1. Open the Settings app.
2. Tap on Cellular.
3. Tap on Carrier.
4. If you see Automatic under the Carrier tab, tap on it to change to Manual.
5. Select Tesco Mobile from the list of carriers.
6. Tap Done.

Android

1. Open the Settings app. 
2. Tap on Network & Internet.
3. Tap on Mobile Networks, then Network Operators.
4. If you see Automatic under Network Operators, tap on it to change it to Manual.
5. Select Tesco Mobile from the list of carriers. 
6. Tap Save.

Note: If you don’t see Tesco Mobile on the list of available networks, switch your phone off and on again. 

#5: Change the Network Mode to 4G or 5G

Your phone’s network mode may not be compatible with your carrier’s network.

For instance, if you have a 5G SIM card but your phone is currently set to 3G, it could cause the “not registered on network” problem. 

To fix this, adjust your phone’s network mode settings to match your carrier’s network.

Here’s how to do this:

iPhone

1. Open the Settings app.
2. Tap on Cellular.
3. Tap on Network Selection.
4. If you see Automatic, tap on it to change it to 4G or 5G.
5. Tap Done.

Android

1. Open the Settings app. 
2. Go to Network & Internet.
3. Tap on Mobile Networks.
4. Tap on Network Mode.
5. Select 4G or 5G from the list of options.
6. Tap Save.

Note: Switching to 4G or 5G may increase your data usage because these networks are designed to provide faster internet speeds. 

#6: Update Your Phone’s Carrier Settings

“My Tesco Mobile says not registered on network.” If you have been experiencing this issue on your phone lately, it could be that your carrier settings are outdated.

To update them, follow these steps:

iPhone

1. Ensure your iPhone is connected to WiFi or cellular network. 
2. Open the Settings app.
3. Go to General and tap About.
4. Scroll down and look for Carrier.
5. You will see “Carrier settings update available if an update is available.”
6. You will see a prompt to download and install it.

Android

1. Ensure your phone is connected to WiFi or mobile network.
2. Open the Settings app.
3. Go to System and tap Advanced.
4. Tap on System Update.
5. Scroll down and look for Carrier.
6. If an update is available, you will see a prompt to download and install it.

Note: It is important to update your carrier settings to improve your phone's performance and fix any network connectivity issues. 

#7: Reset Your Phone’s Network Settings

If none of the above solutions works, try resetting your phone’s network settings.

Although this may erase all your network preferences, such as your WiFi passwords, Bluetooth connections, and VPN settings, it may help fix the issue. 

iPhone

1. Open the Settings app.
2. Go to General.
3. Tap Transfer or Reset iPhone.
4. Tap on Reset.
5. Select Reset Network Settings.
6. Enter your passcode if prompted.
7. Tap on Reset Network Settings again to confirm. 

Android

1. Open the Settings app.
2. Go to System.
3. Tap on Advanced.
4. Tap Reset Options.
5. Select Reset WiFi, Mobile & Bluetooth.
6. Enter your PIN or password if prompted.
7. Tap on Reset Settings to confirm. 

Note: Back up your important data and contacts before resetting your phone’s network settings.

#8: Update the APN Settings

The APN or Access Point Name settings are configurations that allow your phone to connect to your carrier’s network.

If they are incorrect or outdated, you may experience the not registered on network error. 

iPhone

1. Open the Settings app.
2. Tap Cellular, then Cellular Data Network.
3. Enter the following information:

• APN: prepay.tesco-mobile.com
• Username: tescowap
• Password: password

4. Tap Save.

Android

1. Open the Settings app.
2. Tap Network & Internet or Mobile Network.
3. Tap Advanced.
4. Go to Access Point Names.
5. Tap the three dots in the upper right corner.
6. Tap New APN.
7. Enter the following information:

8. Tap Save.

Note: After updating the APN settings, restart your phone for the changes to take effect. 

Wrap Up

If you see the error message Tesco Mobile not registered on network, it means your device cannot connect to your carrier’s network. To fix this, check your network coverage, clean your SIM card, and manually select Tesco Mobile as your carrier.

Got other Tesco Mobile problems that need troubleshooting? Check out our blog! 

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