[_ph_]

I have an older AirTag, which cannot be seen by my iPhone any more but gives a slight beep whenever it gets shaken. Anyone ever heard of the behavior?

[MikeFez]

IIRC, this indicates that it's linked to someone else's account, and has not been shared with you. The "beep when moved" feature is to alert people they're being tracked.

For example, I let my mother in law use luggage of mine with an airtag still in it and every time she moved it after the first day or so, it would play a noise.

[_ph_]

I had the thought too, but there is no way anyone else could have gotten physical control over this and shouldn't I see that AirTag when I scan for things in my surrounding as an anti-tracking protection?

[cyann]

I had a similar problem, the 5 reboots fixed it: https://support.apple.com/en-us/102577

[theshrike79]

Mine started doing this and the reason was an Android phone I had laying around with an app that scanned for airtags.

Basically it thought it was being used for stalking (close to an unknown device) and started beeping. Turning off the android phone stopped that.

[wmeredith]

The battery needs changed.

[_ph_]

Changing the battery was the first thing I did. No change. But if that is the official signal for "battery low", I can try a few more. Thanks.