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i had the same behavior and finally the mainboard was gone/bricked
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did anybody ask the Elegoo-support about that? What is the response?
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hi all i have the same issue,cracked screen fit a new one no test rectangle, support sent vauge update instructions with a filt to upload but still no joy.
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can you show us the file from Elegoo?
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05-11-2020, 10:48 AM
(This post was last modified: 05-14-2020, 01:32 PM by cliffyk.)
I have experienced the same issue, the LCD screen on my newish Mars (just received March 3rd 2020) developed a fractal-like spot (like that reported by another member in a recent post) so I bought a new screen rather than screw around with the warranty. Got new screen installed to find no exposure test rectangle or any images in a "dry-run" print. Gotta' thank Amazon Prime here, I did not care to screw around with any more self-repair, so I returned it for a replacement that arrives tomorrow.
FWIW; due to the screen's inherently fragile nature, and that mickey-mouse connector¹ for the LCD cable, and I was extremely careful when installing the new LCD. I agree with all above, it would be quite a coincidence (and quite thoroughly unacceptable) that the MB failed while replacing a so-called "consumable" part.
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¹ - Whoever designed that connector should be strung up by their private parts--along with the printer's entire design team that elected to utilise it for a consumable component...
