Open Settings
Tap Siri & Search
Turn on Listen for “Hey Siri” or Listen for “Siri”
Turn on Press Side Button for Siri or Press Home for Siri if needed
Follow the on-screen setup prompts
Make sure Wi-Fi or cellular data is on if required
Check that your device supports Hey Siri
Ensure Siri is allowed in Screen Time restrictions if enabled
Make sure your microphone is working properly
Restart your device if Hey Siri still does not work