Liberty Air 2 pro SN

#1

Dears,
Please i need your help to check my new Liberty air 2 pro serial number, because i found that the serial number shown in app is different than the one on the case, is it normal or something is wrong here?

#2

serial numbers do change.
If they “work” with the app its OK.

#3

I seem to remember seeing that on one of my devices before.