Below are links to the current firmware versions for the HMa transmitter.
These are zip files, after downloading extract it into a temporary folder. Use the USB Firmware Updater program to update firmware.
Please note: version 6.x firmware for the HMa is for use only in new product shipped after October 13, 2018 to US customers. These will bear the following new FCC ID numbers:
These ID numbers indicate conformance to the ETSI standard now in effect for wireless microphone transmitters in the United States and Canada. Here the "Nu Hybrid" compatibility mode replaces the old "400" mode used in previous versions of the product.