How to Fix “Not Registered on Network” Error on Airtel SIM (2025 Guide)
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| How to Fix “Not Registered on Network” Error on Airtel SIM (2025 Guide) |
Is your Airtel SIM showing “Not Registered on Network” in 2025? Learn how to fix this issue on Android or iPhone with simple troubleshooting tips and step-by-step solutions.
What Does “Not Registered on Network” Mean?
The error “Not Registered on Network” usually means your Airtel SIM card is unable to connect to the mobile network. This can happen due to issues like:
- Invalid SIM registration
- Network outage or weak signal
- SIM card damage
- Phone settings errors
- Blocked or blacklisted devices
- Airtel line not properly inserted or activated
Common Causes of This Error on Airtel
| Cause | Explanation |
|---|---|
| SIM not properly inserted | Misaligned or loose SIM tray |
| Network outage or poor signal | Temporary loss of Airtel network in your location |
| APN or network settings misconfigured | Manual network search or wrong mobile network selection |
| SIM card not registered | SIM not linked to NIN or expired registration |
| Phone is blacklisted or rooted | Devices reported as stolen may lose network access |
| Faulty SIM card | Damaged or old SIM that no longer works with current phones |
How to Fix “Not Registered on Network” on Airtel SIM (2025 Steps)
1. Restart Your Phone
Sometimes a simple reboot can reset the network connection.
2. Check Network Mode and Manually Select Airtel
For Android:
- Go to Settings > Connections > Mobile Networks > Network Operators
- Tap Search Networks
- Choose Airtel NG (2G/3G/4G/5G) manually
For iPhone:
- Go to Settings > Mobile Data > Network Selection
- Turn off Automatic, wait, then choose Airtel NG
3. Reinsert the SIM Card
- Power off the phone
- Remove SIM card
- Clean it gently
- Reinsert and turn phone on
4. Reset Network Settings
For Android:
- Settings → System → Reset → Reset Network Settings
For iPhone:
- Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings
This won’t delete your data, but it will reset Wi-Fi, Bluetooth, and mobile settings.
5. Try the SIM on Another Phone
This helps determine whether the issue is with the SIM or the phone.
6. Update Your Phone Software
Outdated firmware may prevent your phone from connecting properly.
Go to:
Settings > Software Update > Download and Install
7. Contact Airtel Customer Care
If the error continues, contact Airtel support via:
- Call: 111 (from Airtel line)
- Twitter: @airtel_care
- Facebook: Airtel Nigeria
Or visit the nearest Airtel Service Center to check your SIM or register it again.
Pro Tip: Re-Register Your Airtel SIM
Sometimes the issue may be caused by incomplete NIN linking or a blocked SIM.
To check your NIN status:
Dial *996# or *121#
To link your NIN (if not yet linked):
👉 How to Link NIN to Airtel SIM
The “Not Registered on Network” error is frustrating, but it can be fixed with the steps above. If all else fails, visit an Airtel center to check your SIM or replace it.
Keep your NIN linked, software updated, and Airtel settings configured correctly to avoid this issue in the future.
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