How to Fix Last Line No Longer Available on iPhone. You may have some issues making calls if you use an iPhone that includes a dual SIM or even a modern eSIM. This iPhone issue is caused when your phone has trouble detecting the default or preferred line to use out of multiple cellular plans on your device. Several iPhone 13 users with a dual SIM have reported getting the error.
Even with eSIMs in the iPhone 14 and later, you may still see the error. Through this page, you will be able to fix the last line that is no longer available on the iPhone.
How to Fix Last Line No Longer Available on iPhone
Just like mentioned above, an iPhone on a dual-SIM setup can display a “Last Line No Longer Available” error when it has trouble detecting the default or preferred line while attempting to call with your cell phone. However, this mainly appears on the various iPhone 13 models but can also be a problem on other Dual-SIM-Supported iPhone models.
The underlying reason is some random bug or glitch with the cellular radio, a corrupted call log, or call log, or an incorrectly configured network setting. Moreover, you can still use your other number, but that’s not always practical. Moreover, fixes like toggling Airplane Mode on and off, restarting your iPhone, or clearing your “Recants” history help resolve the problem.
Well, you need to resort to performing a carrier setting update or a network reset if none of the easier fixes help.
Manually Switch Phone Lines
This issue happens when your iPhone has multiple cellular plans using a dual-SIM device or by using eSIMs. If you try to dial out using your default SIM using Phone > Recent, you might see the error occur. One way you can use it is by manually switching to another line with a different cellular plan attached.
Step to switch phone lines on iPhone:
- Before you dial a number, tap the current line at the top of the screen and choose your “main line.”
- Lunch the favorites or recent list and choose the number to dial.
That is all you have to do to switch phone lines on your iPhone.
Reset Airplane Mode
Resetting airplane mode on your iPhone can fix issues with wifi and cellular connectivity. With this, with Wi-Fi and cellular connectivity, we’re just going to toggle it on and off.
- To bring up the control center, swipe down from the top of your iPhone’s screen.
- Click the Airplane Mode button to enable it.
- Hold on for 10-15 seconds and toggle it back off.
Follow the steps above to reset your airplane mode.
Check for Software Updates
If you have the most recent software updates installed on your iPhone, it is important to have access to the latest features and security fixes. Even if you have automatic updates enabled, it’s important to check for updates manually, especially if you’re getting errors.
Step check for iPhone software updates:
- Lunch set from the Home Screen.
- Go to General >Software Update and download any available iOS updates.
These are the steps above.
Restart Your iPhone
If you are facing the issue and it is not working correctly, you will continue to get the error. Restart your iPhone to try and resolve the problem. This process differs depending on the device you’re using. For instance, restarting your iPhone 13 or iPhone 14 isn’t necessarily the same as restarting an iPhone X, 11, or 12.
Make sure you leave it off for at least a full minute for everything to reset and power it back on to see if it’s working.
Update your carrier settings
Another method you have is to update your carrier settings. For example, there could be a pending update from the carrier that your phone is waiting for.
Step to update carrier settings on iPhone:
- Lunch Settings from the Home Screen
- Visit General > About and scroll to the Carrier section.
- If a carrier update available prompt appears, tap update to install it.
Fixing Last Line No Longer Available on iPhone.
If you’re going through the “Last Line No Longer Available” error on your iPhone, using one of the fixes above should resolve the problem. Well, when dealing with this error, there isn’t a “perfect fix”. Those options above are anecdotal, but iPhone owners in the community endorse them.
If you are still facing issues, contact your service provider to see if there’s an issue with your network access. You might also need to check with Apple that your device is working correctly. Another thing you’ll want to try is removing the SIM card (if you have one) and placing it back in the slot. After jostling your phone around for years, it might slip out of its bezel.
However, it’s a nice idea to disable Wi-Fi calling if you use it and have it turned on, as this can sometimes (although rarely) cause issues with your ability to dial out.
