Back feed ender 3 v2 display

What is the problem?

OK, I set up an octopi server for my anycubic i3 mega and Ender3 v2 a couple of days ago. I have noticed the raspberry is powering the display on the Ender 3? I only noticed it as when I set up the printer was running but yesterday I tried to print a part and it kept rebooting after the print was selected from the sd. I thought turn it off and on again but it was already off.

What did you already try to solve it?


Have you tried running in safe mode?

Unplugging the usb cable from the pi or printer closes down the display. Turning off the pi power works the same. Clearly the 5v USB from the pi is powering the ender3 main board

Did running in safe mode solve the problem?


Systeminfo Bundle

You can download this in OctoPrint's System Information dialog ... no bundle, no support!)


Additional information about your setup

OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible</small

Running latest octoprint 0.18
Pi4 b 4mb
Windows 10
Stock ender 3 firmware

Yes, backpowering is a well known issue, especially with Creality printers. Hardware error, not OctoPrint:

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