Make sure your iPhone has Bluetooth turned on
Make sure Location Services are turned on
Make sure your iPhone is signed in to iCloud
Make sure two-factor authentication is enabled for your Apple ID
Make sure your iPhone is running iOS 14.5 or later
Remove the plastic tab from the AirTag
Hold the AirTag near your iPhone
Tap Connect when the setup card appears
Choose a name for the AirTag
Register the AirTag to your Apple ID
Tap Continue
Tap Done
Open the Find My app to view the AirTag
Use the Find My app to play a sound or get directions if needed