How do I add a V2 screen and motherboard to an Ender 3 Max?

  • I have an Ender 3 V2 Screen and 4.2.2 motherboard and I put it on my Ender 3 max. It isn't working. What do I need to do to fix this? I have tried putting v2 firmware on it and the hot end just sits there and makes an aweful noise!

    Please tell me how I can make this work!

    Thank you so much for your help!

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