@MrMagounet ok, that works - i mean I flashed software info printer successfully like in PDF, next I turn off power and turn on and ... pronterface still dont see a printer... also any axis, heating, nothing works when i try to do it via printer display. Do you know what can i do ? i read that i should reset eprom after flashing, but i cant because pronterface dont see printer ehh... hope you can help