Printer Screen not connecting to mainboard | 3D Printing | Page 1

brisk lintel Oct 1, 2023, 12:32 AM

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I recently got a new motherboard for the Neptune 2, and just flashed the firmware onto the board(SKR mini e3v3.0), with relative success. I connect the screen (TFT35 E3 V3.0.1), and it says 'No printer attached!' I try changing the baudrate, but with no success. What could be the problem?

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wild waveBOT Oct 1, 2023, 12:32 AM

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brisk lintel I recently got a new motherboard for the Neptune 2, and just flashed the firmwar...

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AI Help

The issue you are facing might be due to incorrect wiring or firmware settings. Here are a few troubleshooting steps you can try to resolve the problem:

Check the wiring: Ensure that all the connections between the motherboard and the TFT screen are properly made. Check for any loose connections or faulty cables.
Verify firmware compatibility: Make sure that the firmware you flashed onto the motherboard is compatible with the TFT screen. Check the manufacturer's documentation or forums to confirm compatibility and find the recommended firmware settings.
Confirm the firmware settings: Double-check the firmware configuration to ensure that the UART settings for the TFT screen are correctly configured. You may need to adjust settings like the baudrate, UART port number, or controller type.
Restore default settings: If you have made several changes to the firmware settings, try restoring the default settings and then make any necessary modifications again, following the ...

brisk lintel Oct 1, 2023, 12:46 AM

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I tested all of the BAUD rates on the screen, and they all don't work

brisk lintel Oct 1, 2023, 1:02 AM

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On Pronterface, I was able connect with 1000000 BAUDrate, but not on the screen

brisk lintel Oct 1, 2023, 1:20 AM

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Reversing the grey ribbon cable by 180 degrees causes the screen to beep loudly and get stuck in the selection screen for Marlin & touch modes

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On the board side

wild waveBOT Oct 1, 2023, 2:22 AM

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drifting osprey Oct 1, 2023, 11:40 PM

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That may seem like a firmware issue, you sure its configured correctly & u flashed right firmware???

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Right profiles & stuff?

wild waveBOT Oct 2, 2023, 12:42 AM

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This post has been closed due to inactivity.

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brisk lintel Oct 2, 2023, 11:02 PM

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Is there supposed to be a capacitor and a resistor, or is it missing?

#Printer Screen not connecting to mainboard