“Last Line No Longer Available” is a common error message that appears on iPhones when trying to make a call.

What Does Last Line No Longer Available Mean?

“Last Line No Longer Available” is an error message that can appear on iPhones when trying to make a call. This message typically indicates that there is a problem with the phone’s ability to connect to the cellular network, which is preventing the call from going through.

The error message can be caused by a variety of factors, such as poor network coverage, a software glitch, an outdated version of iOS, or an issue with the account or network provided by the carrier. It can also be caused by the phone itself, such as a hardware malfunction, SIM card issue or the phone settings and configurations.

When you see this error message, it means that the phone is unable to establish a connection to the cellular network and the call cannot be completed. The phone user needs to take action to resolve the issue before they can make calls again.

How to Fix “Last Line No Longer Available” on iPhone

There are a few potential causes for this error, and several steps you can take to try and fix it.

  1. Check for network coverage: Make sure you are in an area with the strong network coverage. If you are in a low-coverage area, you may not be able to make calls.
  2. Restart your iPhone: Sometimes, the error message appears due to a minor software glitch. Restarting your iPhone can help resolve the issue.
  3. Check for software updates: Make sure that your iPhone is running the latest version of iOS. Updating to the latest version of iOS can fix bugs and improve performance.
  4. Reset your network settings: Go to Settings > General > Reset > Reset Network Settings. This will erase your wifi networks and passwords, cellular settings, and VPN settings.
  5. Contact your carrier: If you have tried all the above steps and still cannot make calls, contact your carrier for further assistance. They may be able to diagnose and resolve any issues with your account or network.
  6. If the problem persists: The last step would be to take it to Apple or an authorized repair store as there may be some hardware malfunctioning.
  7. Check for a carrier update: Sometimes carrier updates are required to ensure that the iPhone can work correctly on the carrier’s network. Go to Settings > General > About and see if a carrier update is available.
  8. Disable and re-enable cellular data: Go to Settings > Cellular and toggle the Cellular Data switch off and then back on again. This can help to refresh the connection and resolve any issues.
  9. Remove and reinsert the SIM card: Make sure the SIM card is properly seated in the SIM tray and that it is not damaged. If it is, try removing the SIM card, cleaning it gently with a lint-free cloth, and reinserting it.
  10. Check for cellular settings: Check that your cellular settings have not been accidentally modified. Go to Settings > Cellular, and verify that Cellular Data is turned on and that the correct plan is selected.
  11. Check phone settings and configurations Check the phone settings if there is any restriction that can be causing the problem. Make sure it’s not on airplane mode or on any do not disturb mode, disabling any background refresh and disabling any third-party app which may be causing the problem.
  12. Check the network settings Check if your phone is connecting to the right network or if there’s any update for the network. Sometimes, the network settings are changed accidentally, which causes the phone to lose its connection and display an error message.

  13. Check if the issue is with the specific number If the issue is not with the phone settings and still persists, try calling a different number. If the problem is with the specific number, then contact the person or the service provider to check if there are any issues on their end.

  14. Disable the call forwarding Go to Settings > Phone > Call Forwarding, and toggle it off if it’s turned on. Sometimes, if the call forwarding is turned on, it may prevent you from making or receiving calls and result in an error message.

  15. Check the SIM card status Contact your carrier and check the SIM card status. Sometimes, the SIM card may be deactivated or suspended, which causes the phone to display an error message.

  16. Hard reset the phone As a last resort, you can try a hard reset. This will erase all the settings and data on the phone, but it can help resolve any hardware or software issues that may be causing the problem. To perform a hard reset, press and hold the Home and Power buttons until the Apple logo appears.

It’s essential to remember that many different factors can cause the “Last Line No Longer Available” error message on an iPhone, so it may take trying a few different solutions to resolve the issue. If the problem persists after trying all these steps, you may want to consider consulting Apple support or the carrier’s customer service for further assistance.

How do I get rid of the line on my iPhone?

If you want to remove or get rid of a phone line or SIM card on your iPhone, you can follow these steps:

  1. Open the “Settings” app on your iPhone.
  2. Scroll down and tap on “Phone” (or “Mobile Data” depending on your iOS version).
  3. Look for an option like “SIM Cards” or “Dual SIM & eSIM” and tap on it.
  4. You should see a list of phone lines or SIM cards associated with your device. Locate the line you want to remove.
  5. Tap on the line you wish to remove, and you should see options related to that line.
  6. Look for an option like “Remove Line” or “Remove SIM” and tap on it.
  7. Confirm the removal by following the prompts or instructions that appear.

Please note that removing a line or SIM card from your iPhone will deactivate it, and you won’t be able to use it for calls, messages, or data on your device. The process of removing a line may also involve contacting your carrier or following any specific guidelines provided by them.

It’s important to consider that removing a line may have implications on your cellular network service and carrier plans. If you have any concerns or questions related to removing a line or the specific consequences it may have, it’s advisable to reach out to your carrier’s customer support for assistance.

Which iPhone Models Are Affected?

The “Last Line No Longer Available” error message can appear on any iPhone model that is able to make phone calls, including the iPhone 4, iPhone 4S, iPhone 5, iPhone 5S, iPhone SE, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max, and any future models.

It’s important to note that this error message is not specific to a particular iPhone model and can occur on any device that has the ability to make phone calls. The cause and solution of this error message may vary and may depend on the iPhone Model and its settings.

If you are seeing this error message on your iPhone, you can try the steps that I mentioned earlier which are common solutions to this problem. If the issue persists, you may want to consider contacting Apple support or your carrier’s customer service for further assistance.

Is there a bug on my iPhone?

The “Last Line No Longer Available” error message can be caused by a variety of factors, including software bugs on the iPhone. It’s possible that a bug in the iOS operating system or in a third-party app you have installed is causing the problem. However, it’s also possible that the error message is being caused by an issue with your carrier’s network or with your account with the carrier.

If you have recently updated to a new version of iOS and started experiencing this error message, it could be that there is a bug in the new version of the software that is causing the problem. In this case, you may want to wait for a software update from Apple that addresses the issue.

However, it could also be caused by issues with phone settings, configurations, or hardware malfunction and the best way to confirm is by going through the steps that I mentioned earlier and also checking if the error message appears while trying to make calls to other numbers or to different carriers. If the problem persists, you may want to consider consulting Apple support or your carrier’s customer service for further assistance and troubleshooting.

Is iOS 16 still buggy?

It is always a good idea to read reviews and feedback, before installing a new version of iOS, to get an idea of any known issues or bugs that have been reported by users, and to consider if the update is necessary for your usage, taking into account if the problem it’s going to solve is something that you are experiencing, or if the new features are of your interest.

In any case, it is always good to make a backup of your device before installing any updates, in case something goes wrong, and to be aware that any update will take some storage and may take some time to complete, depending on the internet connection speed.

Is the iPhone 14 being recalled?

Recalls of iPhone models typically occur when there is a safety issue with the device, such as a defect in the battery that can cause it to overheat or catch fire. Apple also recalls iPhone models when there’s a bug that affects the performance of the device and causes an issue with the security or a major problem with the software or hardware and causing issues with the device.

If there is any recall on any iPhone model, it is usually announced by Apple on its website, through a press release, or through a letter or email to customers who have purchased the affected device.

How do I change the preferred line for all contacts on my iPhone?

To change the preferred line for all contacts on your iPhone, you can follow these steps:

  1. Open the “Settings” app on your iPhone.
  2. Scroll down and tap on “Phone” (or “Mobile Data” depending on your iOS version).
  3. Look for an option called “Preferred Line” or “Default Line” and tap on it.
  4. You should see a list of available phone numbers or SIM cards associated with your device. Select the desired line that you want to set as the preferred line for all contacts.
  5. Once you’ve selected the preferred line, exit the Settings app.

By setting a preferred line, your iPhone will prioritize using that particular line for calls and messages when contacting your contacts, unless you manually choose a different line for specific calls or messages. Please note that the available options and menu labels may vary slightly depending on your iPhone model and iOS version.

It’s worth mentioning that changing the preferred line for all contacts may affect your cellular network usage and carrier charges. If you have any concerns or specific requirements related to your network plan or carrier services, it’s advisable to reach out to your carrier’s customer support for further assistance.

What does turning on this line on iPhone mean?

The phrase “turn on this line” on iPhone typically refers to activating or enabling a specific phone line or cellular service associated with your device. iPhones that support dual SIM functionality, such as the iPhone XS, iPhone XR, iPhone 11, iPhone 12, and newer models, allow you to have multiple phone numbers or SIM cards active on a single device.

When you see an option to “turn on this line” on your iPhone, it means that there is an inactive or disabled phone line or SIM card that you can activate and use for calls, messages, and data. By turning on the line, you enable its functionality and make it accessible on your iPhone.

To turn on a line on your iPhone, you would typically follow these steps:

  1. Open the “Settings” app on your iPhone.
  2. Scroll down and tap on “Phone” (or “Mobile Data” depending on your iOS version).
  3. Look for an option like “SIM Cards” or “Dual SIM & eSIM” and tap on it.
  4. You should see a list of available phone lines or SIM cards associated with your device. Locate the inactive line you want to activate.
  5. Tap on the toggle switch or option next to the inactive line to turn it on.
  6. Follow any additional prompts or instructions to complete the activation process, which may involve contacting your carrier or inputting relevant information.

Once you’ve turned on the line, it should become active, and you can use it for making calls, sending messages, and utilizing cellular data. The specific menu options and labels may vary depending on your iPhone model and iOS version.

Note that the availability of dual SIM functionality and the exact steps to turn on a line may vary depending on your iPhone model and your region or carrier’s support for dual SIM technology.

In Conclusion

It’s important to keep in mind that the cause of the “Last Line No Longer Available” error message can vary, so it may take trying a few different solutions to resolve the issue.

Categories: Technology

Nicolas Desjardins

Hello everyone, I am the main writer for SIND Canada. I've been writing articles for more than 12 years and I like sharing my knowledge. I'm currently writing for many websites and newspapers. I always keep myself very informed to give you the best information. All my years as a computer scientist made me become an incredible researcher. You can contact me on our forum or by email at [email protected].