I know theres a way to load custom firmware, with Mac cloning into them. I know a few use a jtag from an old xbox360. I have the general gist of it. But trying to find how to load custom firmware there use to be a site called sbhacker that had full guides but thats dead and gone. If anyone can point into the right direction Ill do the research. Ive been googling for the past few months and hit a dead end.