Fix Guide: Sequoia iPhone Mirroring Auth Loop

Symptom: When trying to start iPhone Mirroring on Sequoia, you are repeatedly asked to authenticate on your Mac, but the session never starts.

Why this happens

This "infinite auth" loop is usually caused by a desync between the Secure Enclave on the Mac and the iPhone's FaceID/Passcode state, often after a recent iOS update.

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Fix 1: Reset iPhone Mirroring Settings

1. On your Mac, go to System Settings > Desktop & Dock.
2. Find the iPhone Mirroring section.
3. Toggle "Automatically Authenticate" OFF and then ON again.
4. Try to connect again.

Fix 2: Flush the Pairing Identity

If toggling doesn't work, you need to force a new pairing:

1. Open Terminal.
2. Run this command to reset the mirroring daemon:

killall identityservicesd

1. On your iPhone, go to Settings > General > AirPlay & Continuity > iPhone Mirroring.
2. Swipe left on your Mac's name and tap Delete.
3. Restart the Mirroring app on your Mac to re-pair.

Recommended Tool: AnyTrans

If you frequently run into sync issues, AnyTrans offers a robust alternative for managing iPhone content and mirroring your screen without the native Sequoia handoff bugs.