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moving backwards. need to start over.

Discussion in 'Troubleshooting' started by Jeffrey Slotnick, Apr 9, 2020.

  1. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If it worked with a different image I'd suspect the R2 image, but I don't have an R2 to assist you with.
    Maybe @tkoco or @Geof can test the R2 image you are using to make sure it is functional
     
  2. tkoco

    tkoco - -.- --- -.-. ---
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    If the printer was powered off incorrectly, the software could develop a problem.
     
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  3. Jeffrey Slotnick

    Jeffrey Slotnick New Member

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    tkoco - thanks so much for the continued suggestions. I do have a raspberry pi 3 as luck would have it - I will give it a test - might take me a couple of days. Thanks again.
     
  4. Omar Basha

    Omar Basha New Member

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    When we had screen issues, I removed the ribbon and cleaned the all the contacts on the screen and ribbon with alcohol and it solved it. Our issue was we had no display but I think worth a try here.

    Sent from my SM-G935F using Tapatalk
     
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  5. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You know, I think @Omar Basha is on to an idea here. Maybe the cable is defective or flaky. That is not one of the things that would be a common issue and probably one of the last things I'd even consider. I would still try another Pi if you can for the same reason -- the I/O could be damaged on the one you have (which would have the exact same symptoms as a bad cable or LCD)
     
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  6. Jeffrey Slotnick

    Jeffrey Slotnick New Member

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    mark/omar, - thanks I'll also order a new cable.
     
  7. Jeffrey Slotnick

    Jeffrey Slotnick New Member

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    small update - I tried a different raspberry pi 3, but received the same results :-( I makes me really wonder about the cable, so I ordered a new one, but that makes me have the following question: I ordered this ribbon cable (https://www.partsbuilt.com/cable-ribbon-lcd-raspberry-pi-r2-c2/), but I notice that the one I currently have has a red/black wire combo coming off of it at the end, this one does not - is that going to be an issue ? Thanks
     
  8. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Hmm, if I recall correctly those wires go to the filament runout sensor.
    They may not have included them since they don't run in the same direction as the LCD cable.
    Still I can only imagine installing them would be a pain.
    You can disable the runout sensor....
     
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    If you have it apart enough check both ends of the existing cable to make sure the connectors are crimped down tightly on the cables.
     
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  10. tkoco

    tkoco - -.- --- -.-. ---
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    @mark tomlinson is correct, The red / black wire pair go to the filament out sensor. If you are inclined, you could splice the new red / black pair into the existing wire pair. Or you could just disable the sensor in Octoprint.
     

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