If your 12864 LCD screen is not showing any LCD backlight (you must have firmware loaded on your board for any text to be displayed on the LCD) then rotate the cables at BOTH ENDS but only on one side (aka LCD side or board side). The wire with the red marking on it for […]
If your printer board has the bed and/or hotend reading high all the time when the heaterblock is cold (or displays a MAXTEMP error) and you have ruled out all wiring and thermistors as the issue then this means that the IO pins on the board you have are fried. This can happen to both […]