[BUG] USB Not working

[rawnullbyte]

Bug Description

I flashed the printer (Anycubic 4max pro 2.0) and when i connect it to pc it beeps, but pc just says connecting..., idk how to fix that
EDIT: Yes i tried all baudrates

Steps to Reproduce

1. Flash firmware

2. Connect to pc

3. Use for example pronterface to connect

Expected behavior: Connect

Actual behavior: Beep, fast 3d printer lights flash

Additional Information

VID_20241114_164340066.mp4

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[knutwurst]

Is it possible that you have other programs that access the virtual serial interface? This behavior is actually typical of another program repeatedly resetting the connection.

The beeps from the printer always come when the firmware starts.

Sometimes it is just a bad USB cable.

It is also possible that the potential is equalized via the USB cable if both devices (printer and laptop) are connected to different circuits and both are connected to the protective conductor. Try running the laptop on battery power only without any other cables.

[rawnullbyte]

Is it possible that you have other programs that access the virtual serial interface? This behavior is actually typical of another program repeatedly resetting the connection.

The beeps from the printer always come when the firmware starts.

Sometimes it is just a bad USB cable.

It is also possible that the potential is equalized via the USB cable if both devices (printer and laptop) are connected to different circuits and both are connected to the protective conductor. Try running the laptop on battery power only without any other cables.

The cable is okay, the laptop on video was already running on battery. None of programms were opened