I have experienced that on an iDCS 500R2 with SMVI-16, that FNA (MMC 102) must be set to VM. AME does not work if ONLY FNA in MMC 316 is set and not MMC 102.

The following comments are directed at Samsung:

a) This is most likey an overlook in firmware (bug). If it is, kindly address it.

b) If this behavour is by design, then it should be well documented, which it is not. Not only would proper documentation save Samsung tech support unnecessary work load but it would also save Dealers and Customers time and aggrivation.