The serial number can be used to determine whether your Melomania1 were manufactured with the latest firmware (v6.6)
Example Serial number:
AK C11107 6959 1234
In this example “6959” is the manufacture date identifier.
All Melomania1 with a date identifier equal to or greater than 6959 were manufactured with firmware v6.6
The serial number can be found on the original box and on the inside of the charging case lid.
If you require any assistance please contact Customer Support.