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Repair information for the Creality Ender 3 Pro--an upgraded version of the Ender 3 3D printer, made by Creality. Released in September of 2018. Model number: Ender 3 Pro.

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3D printer blue screen

Built printer, then it turned on. Leveled the plate to the print Nozzle with a piece of paper. I printed 2 test models then a 5 hour model. All 3 models we fine. Then turned off printer. The next day I turned the printer on and only got a Blue screen.

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was the printer bumped at all?



I did a puzzle tube print which took 5 hrs, when it was done I turned the printer off. The next day when it turned it on it had the blue screen.


ok, check the connections maybe. there is one on the back of the LCD and another inside the CPU


Are you using octoprint or an SD card to print your models? Try using octoprint instead on an SD card, I accidently inserted the wrong SD card and it corrupted the firmware. Try re-flashing the firmware , that usually did the trick the few times it happened to me. On one occasion the LCD connector was loose. good luck.


I checked all the connections before hand and then went through a lot of different things that others have said to do., nothing helped.

I just don't know what else it could be. It is brand NEW. I just got it and did 1 print job, turned it off after it was finished, next morning turn it on and got the blue screen.


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its 1 of 3 things u have a loose LCD or not connected properly it could be that u have attempted to mess with the power management by accident and now it's has too much/&or to little voltage and is ether broken or not working properly, or 3 it's something on the board that's needs replacing these are the most common things i run into

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Frank Lovash sera éternellement reconnaissant.
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