Hi all. Yesterday, my printer stopped responding to commands from the touch screen, so I shut the printer off and turned it back on. Now, the printer and screen turn on (power fan spins and screen backlight comes on), but the screen does not display anything, and the printer cannot be reached via USB. Multiple power outlets and cables have been tried, and all cables inside the main chassis are securely connected except for the Z- cable (which has been replaced by a BLTouch). There is a single red LED on the motherboard that lights up when the machine is powered on. Does anyone have any ideas how I can try to diagnose this? I’ve sent an email to elegoo, but I’ve heard it can take weeks to get a response, and I’m trying to get things ready for a DnD campaign starting this weekend… thanks for any tips.
Do you have a picture? looking at images online, there’s… alot of LEDs on that board. There should be documentation somewhere saying what it means. (Not holding my breath on that documentation…)
since the LCD and fans turn on, it’s unlikely to be a power issue. (a bad PSU will usually either just not work; or work until there’s high draw and crap out on you.)
It’s unlikely to be a physical connection issue, unless there’s some sort of jumper pins for flashing fresh firmware, which might put int into a different mode for that. (i assume you weren’t doing that recently?)
I suspect something happened to the firmware; If you have a copy of the firmware, either the stock firmware or whatever you flashed last time it was working it may take a fresh firmware from the SD card. Personally, I’d hunt down what the board does during boot first and identify what that LED means.
if you can, also check the board for signs of physical damage, something may have shorted out, etc. if it’s hardware, you’ll need to work through Elegoo for replacements.
anguo@lemmy.ca 3 months ago
So, I’ve had something similar happen to a creality printer, which was just the excuse I needed to bench it. I gave it to a student later, he plugged it in and it just …worked.
So my first reflex would be to tell you to unplug it and hold the power button, to empty any residual charges/memory.
papalonian@lemmy.world 3 months ago
That was one of my first thoughts, after a few attempts at power cycling I did the same with the printer unplugged to make sure she was empty. That’s awesome it worked for your student though; you got an excuse to buy a fun new toy, and they got a great learning tool 👍🏽
anguo@lemmy.ca 3 months ago
Well, there is a reason I was trying to get rid of that printer 😅. The school had two Creality CR-5S that were donated from a Chinese university. You won’t find anything about them online (except for one YouTube video describing how terrible they are). Not sure how much of a gift it was to the student.