Ender 3 pro issue

[jbradfield44]

What is the problem?

Ender 3 pro will connect for a split second and show "No serial port found" and will not connect.

When I can get it connected I attempt to start a print and it will start for a second, do its normal process and before it gets to lay any of the print down will lose connection.

What did you already try to solve it?

Ive tried 10+ different micro usb cables to connect my printer

Tried it on both a Raspberry 3 B+ and a Raspberry 4

Have you tried running in safe mode?

Yes

Did running in safe mode solve the problem?

No

Systeminfo Bundle

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

octoprint-systeminfo-20240612220247.zip (15.2 KB)

Additional information about your setup

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

Octo Print version 1.0.0, Ender 3 Pro, Browser: Opera GX, operating system: Win 11

[Ewald_Ikemann]

Hello @jbradfield44 !

For this is a Creality printer, try with/without SD card in the printer's SD card slot.

Try:

Put tape on the 5V pin - Why and how

First of all this whole tutorial isn't a mandatory mod - you just need it if you run into issues (weird things are happening and you've already ruled out the more common suspects) or if the always running fan and illuminated display (even when the printer is turned off) disturbes you. I'm starting with the why part: If you connect a 3D printer via USB to your Raspberry Pi it can lead to all sorts of power related issues. Most of the time those issues occur only if you turn on your pi before …

Also try to connect to pronterface

[jbradfield44]

Thank you!! I will try this!! I am also getting the same error "OctoPrint Error
SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)" On my Ender 3 S1 printer. Should I try the same thing?