MCU lost communication - Creality 4.2.7 + RPi Zero 2W

[TheFuzzyGiggler]

You’re getting the error

b'Got EOF when reading from device'

Try the suggestions outlined here:

Got EOF when reading from device

Got EOF when reading from device Background This is actually an error raised by Linux operating system (OS) of the host and only reported by Klipper. It indicated that the contact to an attached hardware (mostly the MCU in this case) is lost. This can happen when the USB port is reset or the OS thinks the hardware has been disconnected. This error often appears in conjunction with the Timeout with MCU / Lost communication with MCU errors Reasons Unreliable connection between the printer-bo…