Jyers / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. | Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
http://marlinfw.org
GNU General Public License v3.0
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Firmware fails to boot when filament not loaded in runnout sensor #2092

Open oliveman521 opened 1 year ago

oliveman521 commented 1 year ago

Description

When booting Ender 3, screen holds on backlit but black. The only way to finish the boot is for filament to be loaded in the runnout sensor. E3V2-BLTouch-3x3-HS-v4.2.2-v2.0.1.bin and 5x5 both had same issue.

Steps to Reproduce

  1. Install E3V2-BLTouch-3x3-HS-v4.2.2-v2.0.1.bin on ender 3 V2
  2. Install runout sensor and connect to main board
  3. Do no load the runout sensor. Make sure the button is unpressed
  4. turn printer off then try to turn it on

Expected behavior: printer boots

Actual behavior: printer hangs on blank (backlit, but no image) screen

Additional Information