hi got a 2nd hand prusa i3 made designed by czar
has ardunio mega 2560 board etc
problem is when connected to windows 8.1 64bit in device manager under com/ports shows as usb serial port com 7
but cant install arduni mega 2650 have disable signature thing tryed installing by updating driver from device manager but says windows determined driver
downloaded software from audunio website
tryed installing maual from the folder but always stays the same in device manager
when i open repetior click connect after altering prefrences to com 7nothings detected any help please
alsohave sd card panel could i work it without the computer thanks
