How to Fix iPhone 13 Pro Max says Last Line No Longer Available in iOS 15

On your iPhone 13 pro Max if you are getting this error message “Last line no longer available on iOS 15 or 16” when you are trying to call someone, then you can fix this issue easily. So, lets see in detail below.

iPhone 13 Pro Max says Last Line No Longer Available in iOS 15 then this is due to cellular network connection and other network issues.

Fix iPhone 13 Pro Max says Last Line No Longer Available in iOS 15

Below iPhone 13 pro troubleshooting methods will help you fix iphone 13 pro max says line no longer available in iOS 15 or 16

Solution 1: Clear Recent Call History

Step 1: Open phone app on your iphone then click on edit option displayed on top right corner of the screen 

Step 2: Click on clear displayed on top left corner of the screen then popup window is displayed on the screen

Step 3: Click on clear all recents to confirm this process

Solution 2: Enable and Disable Airplane Mode

Step 1: Open Control Center icons on your iPhone and Enable Airplane Mode 

Step 2: Now wait for 5 to 10 seconds and Again Disable it 

Solution 3: Turn OFF and Turn ON Automatic Network Selection 

Step 1: Open Settings App on your iPhone and then click on Cellular or Mobile Data 

Step 2: Now click on Network Selection then Toggle off Automatic and wait for few seconds and Toggle on Automatic

Also Read:

1) How to Fix Notification Sound too Low on iPhone 13 Pro Max, Mini, 12

2) How To Fix Apple Music Stops Playing After 15 Seconds on iPhone 13, 12, 11, x, XR

3) How to Fix iPhone 13 Pro Max Camera Flickering Issue

4) How to Fix Ear Speaker on iPhone Not Working on iPhone 13, 12, 11, x, XR

5) How to Change Keyboard on iPhone 13, 12, 11, X, XR

Solution 4: Restart your iPhone

Step 1: Go to Settings Menu on your iPhone and click on General

Step 2: Now scroll down the screen and click on Shut Down 

Step 3: Now move the slider to the right to power off your device and wait for few seconds and turn on your iPhone

Solution 5: Force Restart your iPhone 

Step 1: Press and Release Volume Up Button and quickly Press and Release Volume Down Button 

Step 2: After that Press and Hold the power button or Side button until apple logo appears on the screen 

Solution 6: Reset Network Settings

Step 1: Open Settings icon on your iPhone and Click on General

Step 2: Now scroll down the screen and click on Transfer or Reset iPhone 

Step 3: Now click on Reset then a pop up window is displayed on the screen then select Reset Network Settings

Step 4: Now enter your iphone password and again click on Reset Network Settings to confirm this process.

Solution 7: Software Update

Step 1: Open Settings Menu on your iPhone and Click on General option

Step 2: Now click on Software Update and check whether update is available or not

Step 3: if Software Update is available then click on download and install by following iPhone instructions to update your iPhone software.