What is the problem?
Brand spanking new Raspberry Pi Zero 2 W and fresh install of OctoPrint, but my printer's serial port is not detected.
What did you already try to solve it?
Followed the guide in the FAQ that OctoPrint linked. Swapped out three different cables. Ensured that the cables are data-transfer. Ran dmesg. Unplugged everything, powered on Pi and printer separately and then once they were running connected the Pi to the printer. All nothing.
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-20260123171722.zip (29.0 KB)
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
- OctoPrint 1.11.5
- Python 3.11.2
- OctoPi* 1.1.0 (build 2025.12.01.130812)
- Ender 3 V2 Firmware version 4.2.2
- Windows 10
