v4.3.1 mainboard



  • 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



  • 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 cs@creality.com and attach pictures or video. There will be professionals to help you.


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