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***
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.