What should I do if my Mac and iPhone are not syncing properly after updating to a new version of macOS or iOS ?
When your Mac and iPhone are not syncing properly after updating to a new version of macOS or iOS, there can be several reasons for the issue. This guide will help you troubleshoot and resolve common sync problems between your Apple devices by following these steps: checking internet connection, restarting devices, signing out and back in to your Apple ID, turning on Handoff, updating both devices, checking iCloud sync settings, resetting network settings, and contacting Apple Support if needed.