How do I connect my old AirTag to my new iPhone , same Apple ID

Hi Dredre1904,

Regarding the issue with connecting your new iPhone to your AirTag, you started from a great resource. Test the steps below found in the article here: How to reset your AirTag - Apple Support

"Here's how to reset your AirTag:

1. Press down on the polished stainless steel battery cover of your AirTag and rotate counterclockwise until the cover stops rotating.
2. Remove the cover and the battery.*
3. Replace the battery.
4. Press down on the battery until you hear a sound. This sound means that the battery is connected. 
5. When the sound finishes, repeat the process four more times, removing and replacing the battery, then pressing down on the battery until you hear a sound. You should hear a sound each time you press on the battery, for a total of five sounds. The fifth sound is different from the previous four. This indicates that the AirTag is now ready to pair.
6. Replace the cover by aligning the three tabs on the cover with the three slots on your AirTag.
7. Press down on the cover.
8. Rotate the cover clockwise until it stops rotating."

Once reset, test setting up your AirTag once again. Set up your AirTag using your iPhone, iPad, or iPod touch

If you continue to have an issue, see if you can remove the AirTag then add it to your new device. Remove an AirTag or other item from Find My on iPod touch

Should the issue continue, reach out to Apple Support directly to further assist.

Contact - Official Apple Support

Contact Apple for support and service - Apple Support

Best.