SIM Registration Failure
Technology

SIM Registration Failure: Troubleshooting Tips & Solutions

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Encountered SIM registration failure and wondering what could be the possible reason behind it? Well, you’re not alone. If the error SIM registration failed shows on your phone, don’t panic. The solution for it is not as hard as it might sound.

With over 7.33 billion global smartphone users, the “SIM Registration Failure” error is dreaded by all. This issue prohibits individuals from fulfilling various mobile activities such as:

  • Initiating phone calls, 
  • Sharing text messages through SMS, and 
  • Effectively using mobile data.

Essentially, a SIM card is completely functional and auto-registered as soon as the microchip is inserted into a smartphone. However, due to the presence of various technical glitches and communication errors, the “SIM Registration Failure” issue can be experienced. Join us as we debunk the foremost reasons behind the error and identify relevant solutions for the same!

Reasons for the Error

Several factors contribute to the “SIM Registration Failure” error, which prevents a smartphone from connecting to the carrier’s network. These issues range from hardware defects to network complications, and understanding the root causes is essential for resolving the problem. 

The Accumulation of Dirt

SIM cards are prone to physical damage because their microchips are made from delicate materials. Dust and dirt accumulation, or even a slight drop of the phone, can cause the SIM card to malfunction. Furthermore, if the SIM card isn’t inserted properly, users may encounter the “SIM Registration Failure” error. 

Network Issues 

Carrier network complications are another major cause of registration failures. These problems typically arise from weak signal strength or network outages. If the device fails to establish a secure connection to the carrier’s network, it will display the registration error. 

Damaged SIM 

A damaged SIM card often results in registration failure, especially if the card has not been used for an extended period. SIM cards that have been inactive for over a year or used in a carrier-locked phone with a different network provider may struggle to connect. 

SIM Card Issues 

Improperly inserted or faulty SIM cards can trigger the “SIM Registration Failure” or “Not Registered on Network” errors. SIM card damage or improper insertion frequently disrupts network registration, preventing users from accessing services. 

Incorrect Network Provider Settings 

Sometimes, incorrect network settings—especially after traveling to a different region or following a system update—can cause the SIM card to lose connection. Misconfigured network settings result in registration errors as the device fails to align with the network’s requirements. 

Software Glitches and Outdated Firmware 

Recent system updates or software glitches may also interfere with the phone’s ability to register with the network. In some cases, bugs introduced by updates can prevent proper network registration. Running outdated firmware can lead to compatibility issues, making it difficult for the device to connect to modern network infrastructures. 

IMEI Issues 

The International Mobile Equipment Identity (IMEI) is a unique identifier that links your phone to the network. If the IMEI is corrupted, invalid, or blacklisted, the device may fail to register on the network, triggering the error message. 

How to Fix the “Not Registered on Network” Error 

Now that you understand the causes of the “Not Registered on Network” error, it’s time to address them with these comprehensive steps: 

Restart Your Phone

Start by restarting your phone to refresh network connections and resolve any temporary glitches. 

Check the SIM Card and Insertion

Power off your phone, remove the SIM card, and inspect it for damage. Ensure the SIM card is inserted correctly in the proper orientation, then power the phone back on. 

Try a Different SIM Card

If available, insert another activated SIM card to test if your phone can connect to the network. If it works, the original SIM card might be faulty. You could also consider using a dual-SIM smartphone, such as the HONOR 90, which offers the advantage of network redundancy by supporting two SIM cards simultaneously. 

Select the Correct Network Mode

Navigate to your phone’s settings under ‘Mobile Network’ or ‘Connections.’ Choose the appropriate network mode (e.g., 2G, 3G, 4G, LTE) based on your carrier’s coverage. If the issue persists, move on to the next step.

Manually Select the Network Operator 

In the same settings menu, go to “Network Operators” and select “Search networks manually.” Allow your phone to scan for available networks, and then choose your provider from the list. 

Update Your Phone Software 

Go to ‘Software Update’ or ‘About Phone’ in your settings to check for updates. If one is available, download and install it as outdated software can cause network registration issues. 

Reset Network Settings 

If the problem continues, try resetting your network settings. This will remove all saved Wi-Fi networks, paired Bluetooth devices, and custom network preferences. Go to the ‘Reset’ menu in your phone’s settings and select ‘Reset Network Settings.’ 

Toggle Airplane Mode 

Enable airplane mode for a few seconds and then disable it. This refreshes your connection to the network, which can help resolve errors like “Not Registered on Network.” 

Contact Your Mobile Provider 

If none of the above steps work, contact your carrier for further assistance. There may be a network outage in your area, or your SIM card may need to be replaced. Your carrier can help you with a new SIM if required. 

Update APN Settings

If your service provider has recently changed, you may need to update your Access Point Name (APN) settings. Record your current settings before making changes, as this can be a more advanced fix. Your provider can offer the correct APN details. 

By following these steps, you should be able to eliminate the error message and restore full functionality to your phone.

Cleaning the SIM

Accumulation of dust, rust, and other external elements can affect the performance of a SIM card. Thus, it is imperative that smartphone users consider cleaning the SIM tray and SIM card to achieve optimum performance.

Initiate the cleaning process by ejecting the SIM tray with the assistance of a pin. Use cotton buds or a dry cloth to carefully clean the tray and the card. Ensure that the SIM card is cleaned in a single direction without exerting additional pressure on the microchip through excessive bending.

Go to Coverage Area

Every mobile operator functions within a defined geographic area where top-tier network coverage and benefits can be relished. Individuals using smartphones from remote locations will not be able to harness the complete potential of the carrier network concerned. Thus, users must ensure to be within the carrier coverage area to overcome issues such as SIM Registration failure.

Reorder SIM if Damaged

If a SIM card is physically damaged then users must consider reordering a new SIM card. A damaged or broken SIM card cannot be fixed. However, smartphone users can incorporate number porting solutions to retain their existing phone numbers while purchasing a new SIM card.

Conclusion

These are some of the foremost solutions that will help you to overcome and resolve the frustration “SIM Registration Failed” error. Ensure to collaborate with your carrier customer support team to avail additional solutions.

FAQs

Can I use my SIM card without registering?

No! Smartphone users can only avail SIM card-related benefits after completing registration requirements.

How do I know if my SIM card is registered?

Prepaid subscribers conventionally receive a text message authenticating SIM registration. Smartphone users must seek assistance from the carrier service provider concerned to verify the registration status of a SIM card. 

What happens if SIM is not used for 3 months?

A SIM card is deemed to be deactivated when zero activities are recorded under the registered card for over 3 months [90 days].

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