Some people have had success using ubuntu 18.04 image to get firmwares out of the bin. I do not remember if the M3 bin asks for a key to unencrypt or not. I have been able to extract firmware out of m4.
Some people have had success using ubuntu 18.04 image to get firmwares out of the bin. I do not remember if the M3 bin asks for a key to unencrypt or not. I have been able to extract firmware out of m4.