I recently inherited an X950 to repair, and quickly realized firmware was a big issue. Looks like it has original firmware of LHS42.P451. Really old. \nThe newest version is E6 P618.\nThe problem is the new firmware wont download. Just says updating, but never does. Obviously its an engine code difference.\nLexmark support (bummer) advised to enter 3,4,6 into Invalid engine code mode. This did not work. \nI guess what I'm looking for is a way to update this firmware with such a huge difference. \nIf there are incrimental firmware updates to get there, I sure can't find it. \nAny insight to this out there ?