Please do not change the firmware on the Minimig - we have already updated it to the most appropriate new version. Please wait for our Technician response to your inquiry.
We do not ship the Minimig with old firmware on it. We test every Minimig before sending to customers.
You need to use the appropriate files on the SD card to match the firmware we have flashed it with. You get these if you buy an SD card with the Minimig.
Our Technician can point you in the right direction to which files to use.