I bought the Mark4 back in 2012 and played with it and then it got into a box and i moved ... yada yada
So I just found the little guy again and its still on version 2.7. I was able to find and download the newer firmware but it doesn't upgrade (including 3.0). I'm getting an error that says "MD5sum does not match!" and gets out.
I understand that the Infusions wouldn't update over the internet and i can update them thru a USB device, but all the infusions go back to 2.8.1 only. Can someone help, please?