Fixing AirDrop and Handoff Account Glitches (DW1560)

Resolving 'Account-Specific' AirDrop Failures in macOS Tahoe

If your DW1560 Wi-Fi card works for AirDrop with one Apple ID but not another, the issue is a Keychain or iCloud Handshake corruption.

The Fix:

1. Sign Out of iCloud: On the Tahoe machine, sign out completely and choose 'Delete from Mac' for all data (ensure it's backed up).
2. Reset Bluetooth/Wi-Fi Plists: Delete com.apple.Bluetooth.plist and preferences.plist from /Library/Preferences/SystemConfiguration.
3. Re-sign In: Reboot and sign back in. This forces macOS to re-generate the Handoff/Continuity keys in the Secure Enclave (spoofed by OpenCore).