iPhone Mirroring Cannot Add/Use New iPhone [Fixed]

Right after installing the latest macOS Tahoe and bashing the Liquid Glass Design , the first thing I noticed was the inability to use my new iPhone 17 Pro Max with my Mac using the mirroring feature. My old iPhone, the 16 Pro, which was paired with Sequoia, was still linked with the Mirroring in Tahoe and was working without any hiccups.

However, there was no option whatsoever to pair my new device to it. Even in System Settings -> Desktop & Dock, it doesn’t show any dropdown to choose which iPhone to use. I went through a few Apple documentations on this feature, but there weren’t any tips on how to pair a new iPhone.

So I then tried a few tweaks myself and managed to address the underlying issue. Henceforth, I thought of documenting my findings here because if anyone else gets bugged by this problem, then they could easily fix it using the tips mentioned here. So without any further ado, let’s get started.

  • Fix iPhone Mirroring Cannot Add/Use New iPhone FIX 1: Force Quit duetexpertd FIX 2: Delete ScreenContinuity Plist File FIX 3: Toggle Handoff FIX 4: Relogin to iCloud FIX 5: Via Personal Hotspot Tweak

Fix iPhone Mirroring Cannot Add/Use New iPhone

cannot add use new iphone with mirroring - 1

It is recommended that you try out each of the workarounds and then see which one spells out success. So with that in mind, let’s get started.

FIX 1: Force Quit duetexpertd

  1. Launch Activity Monitor and force quit the process named: duetexpertd
  2. Now open iPhone Mirroring again.
  3. Your new iPhone should now show up in System Settings.

If that doesn’t work, then first sign out your Mac from your iCloud account and then sign back in, then retry the above steps.

FIX 2: Delete ScreenContinuity Plist File

  1. First off, remove your old phone from iPhone Mirroring.
  2. Then open the Terminal window and type in: defaults delete com.apple.ScreenContinuity
  3. Now delete the ScreenContinuity.plist file using the below command: rm ~/Library/Preferences/com.apple.ScreenContinuity.plist
  4. Finally, restart your Mac and check out the result.

FIX 3: Toggle Handoff

  1. Open the Settings app on your iPhone.
  2. Then tap General > AirPlay & Continuity.
  3. Now disable Handoff, then turn it back on.

As soon as you turn it on, your new iPhone should come up in iPhone Mirroring as an option. It should also put the “iPhone Mirroring” section in “AirPlay & Continuity,” which wasn’t there earlier. However, if the above steps didn’t work out, then restart your iPhone after turning off Handoff and before restarting it. In short:

  1. Open settings
  2. Turn off Handoff
  3. Reboot Device
  4. Turn Handoff back on

FIX 4: Relogin to iCloud

A bunch of users have said that signing out of their iCloud account on their MacBook Pro, restarting their Mac, and then signing back in was the tweak that worked in their favor.

FIX 5: Via Personal Hotspot Tweak

According to some, t he problem might be related to the network, especially if you have a mesh network and the Mac and phone are connected to two different nodes. In that case, you can use the phone as a WiFi hotspot from your Mac. This option should appear in the Personal Hotspots list. Once that works and is connected, revert to the standard WiFi network on the laptop, and the pairing should complete. Then go to the iPhone Mirror app and you should now add/use your new device.

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