To Update the Firmware on your MM3 device please download and install the MM3 Agent onto your windows computer. If purchasing a new SD card to use in your MM3 it must be in the size range of 2-32 GBs.
***Please note the MM3 Agent is not compatible with Apple or Chromebook products***
Blank SD Card Firmware Update Video
The MM3 Agent will need to be extracted before you can install it onto your computer. If you need an extraction tool to do so please use the 7-zip extraction program at this link.