How to upgrade MCU firmware from Homeseer

I am currently running HomeSeer version 4.2 and I am having trouble to upgrade Z-Wave MCU and .bin (Target 1) - Holtek MCU file for LZW32-SN dimmer switch. HomeSeer’s firmware upgrade file selection does not like .bin file extension.

I think both .otz and .bin files need to be upgraded together right?

Did you ever figure this out? I’d like to know how I can update the firmware from Homeseer. I do not have a windows machine available to do the Silicon Labs way.