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Solved Screen Looks Weird After Firmware Update

Discussion in 'Troubleshooting' started by Marquis Johnson, Sep 30, 2019.

  1. Marquis Johnson

    Marquis Johnson Active Member

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    I think it is unrelated to the Firmware update but right after I updated the firmware my screen looks like this (see image below). I think some static electricity shorted something on the LCD's board.
    Optimized-20190929_202352.jpg
     
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That or the connections (ribbon cable connectors) to the LCD or the RAMPS are loose or bad.
     
  3. Marquis Johnson

    Marquis Johnson Active Member

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    Turned out to be firmware issue. I was advised by Reddit to add the below delays underneath
    #define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

    #Define ST7920_DELAY_1 DELAY_NS(0)
    #Define ST7920_DELAY_2 DELAY_NS(250)
    #Define ST7920_DELAY_3 DELAY_NS(0)
     
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  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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  5. albert3d

    albert3d Member

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    For reference, what firmware version were you seeing this issue?
     
  6. Marquis Johnson

    Marquis Johnson Active Member

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    Marlin 1.1.9
     
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  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Ah, that makes more sense.
    Good work -- getting from 1.0 to 1.1.x is not a simple hop on this printer.
     
  8. Marquis Johnson

    Marquis Johnson Active Member

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