Power Meter Serial Number

when doing research on how to get PM Serial Number, ([SOLVED] PM SN + Status in the Data tab - #5 by app4g) i found out that the SN is diff between when it’s connected as BT or via ANT+

Not only that, the Data that is printed physically on the sensor vs what is reported by querying the device (via BT) is also different.

Then, to add insult to injury, it seems that Garmin FIT file only accepts Digits in the SN and my H10 has alphabets on the SN and my Assioma has dots… so…

i have no idea…