touchscreen firmware



  • hi everyone,
    I have an ender 3 pro which i upgraded with a touch screen, it worked fine [with the touch screen] until i put an sd card in the machine that had some irrelevant firmware on it [ i think it was for a raspberry pi]
    anyway the screen then hanged on start up, is there a way to fix this? apparently it's a firmware problem, but how do you know the correct firmware?
    the board is 4.2.2
    thankyou


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