Technology

Troubleshooting Guide for SIM Call Failure: A Swift, Simple, and Effective Resolution

Unable to make calls from your SIM card can be more than just an inconvenience; it can have serious consequences for your work and personal relationships. In this article, FPT Shop guides you on how to fix this issue quickly, easily, and most effectively.

Administrator

24 April, 2024

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Why Your SIM Card Is Not Working and How to Solve It

A SIM card not working can be more than just a minor inconvenience in your daily life. It can have greater consequences for your work and personal relationships. That’s why reading this article could save you from these hassles.

Reasons Why Your SIM Card Is Not Working

There are several reasons why a SIM card may not be working. Here are some of the most common:

Prepaid subscribers should check if their account balance is sufficient for making calls. If not, topping up the account will restore calling capabilities.
Another reason a SIM card may not be working is because the calling service has been temporarily suspended by the network provider due to unpaid bills (for postpaid subscribers) or because the usage limit has been exceeded.
Another possible issue is that the customer has recently activated a new SIM card but has not yet completed the activation process. Activation is a crucial step for the SIM card to function normally.
Finally, a SIM card may not be working because the user has accidentally enabled the call blocking feature on their device or because of a technical fault with the device.

Solutions to Fix SIM Card Not Working Issue

Check Balance

Even if your main account balance is depleted, you may still be able to make calls using your bonus account. However, your ability to make calls will depend on the terms and conditions of each type of bonus account, which may apply to domestic or international calls.

To check how much bonus account you have and to whom you can call with it, dial *102# to check your Viettel bonus account information.

If your bonus account only applies to domestic calls and you are trying to call an international number, the system will notify you that you do not have enough balance to make the call.

Check If the SIM Card Is Registered to the Correct Owner

Mobile service providers now require their subscribers to register their SIM cards to the correct owner. If the SIM card is not registered or the information is incorrect, the SIM card will be restricted from two-way communication, resulting in the SIM card not working properly.
To verify if your SIM card is registered to the correct owner or if the information is correct, you can send a message with the content TTTB to 1414.

Restart the Device

Restarting a device is a common solution recommended for fixing various types of issues, including a SIM card not working. To restart an Android device, press and hold the power button until the screen displays the restart option.

For iPhones, you will need to press and hold the volume down button and the power button simultaneously until the Apple logo appears on the screen, then release. For detailed instructions on how to restart each iPhone model, you can refer to the detailed information on the manufacturer’s support page.

Check Airplane Mode

Go to Settings, select Connections & sharing, and then enable Airplane mode for about 30 seconds, then disable it. You can also easily turn Airplane mode on and off by swiping down the status bar and tapping the Airplane mode icon.

Change the SIM Port

There are many factors that can cause your SIM card port to malfunction, and finding a replacement port is the best solution for you.

Check the SIM Card Tray

If you have inserted the SIM card into your phone but the device still says that no SIM card is found, you should check to make sure that the SIM card is correctly positioned and securely seated in the SIM card tray.

Frequently asked questions

There could be several reasons for this issue. It could be due to a faulty SIM card, network issues, or a problem with your device. To troubleshoot, first ensure your SIM card is inserted correctly and that you have sufficient credit or subscription plan to make calls. Check your network connection and try restarting your device. If issues persist, contact your network provider to ensure no outages or account issues are causing the problem.

A ‘SIM call failure’ message indicates that your device is unable to connect to the network for outgoing calls. This could be due to a variety of factors, including network coverage, SIM card issues, or device settings.

This error usually occurs when your SIM card is not correctly set up on the carrier’s network. Ensure your SIM card is activated and properly registered with your carrier. Contact your carrier to verify that your SIM card is provisioned correctly and that your account is in good standing.

This could be due to a number of factors, including network coverage, device settings, or SIM card issues. Ensure your device is connected to a cellular network and that you are in an area with sufficient coverage. Check your call forwarding settings and ensure your phone is not set to ‘Do Not Disturb’ mode. If issues persist, contact your carrier for further assistance.

Several factors could contribute to this issue. Ensure your device has sufficient signal strength and that you have not exceeded any messaging limits imposed by your carrier. Check your messaging app settings and ensure your SIM card is properly configured for SMS messaging. If problems persist, consider restarting your device or contacting your carrier for further assistance.