I have just purchased an Ender 3 v3 SE and tried connecting it up to my Octoprint setup that has worked well since I installed it on a RasperryPi 3 B+. The software reports that it cannot find an active serial connection and I can get no further.
Have seen videos on YouTube showing the SE working with Octprint but also posts saying that people are finding the same problem I have so can anyone clarify please.