Is a red light on mainboard normal or should it be blue. Stuck on loading screen and cannot flash firmware or connect via usb to get printer working
@stu-3d flash board firmware on big SD card in slot behind screen first, then put the screen firmware on micro SD, remove the LCD and put into slot on the LCD board and flash, should resolve your issue
Gracy last edited by
Hi, @stu-3d What's the type of your printer?
Red light doesn't necessarily mean abnormal. Please reflash the firmware and check whether it can be recovered.
If there is still a problem, please send an email to firstname.lastname@example.org and attach pictures or video. There will be professionals to help you.