I can't install the CH34xxx driver for MacOs Sequoia or MacOs Menterey

It is also necessary to remind that the NEJE software only supports connecting to your device via Bluetooth, you can use lightburn to connect to your device via USB.

As recommended in the “Boot fail” section, I disconnected all the wires from the board, and the green LED turned on

Is this help?

No. NEJE Wiki

Boot Fail / Abnormal Startup

I’m not very clear about the problem you describe, can you add more details? It may be a good idea to describe the problem you encountered through a video.
If you don’t know how to add a video, this link may help you.

or

Good afternoon, dear friend.
I will briefly describe my problem:
I bought a NEJE MAX4 E80 machine. When I installed the LightBurn software, the wchusbserial port did not open. All the recommendations on the internet said that I needed to install the CH34xx driver. However, all my attempts to install the driver were unsuccessful. I contacted NEJE’s support team, and initially, they also recommended installing the driver correctly. After you, dear friend, joined the conversation, it became clear that I did not need to install any drivers. In one of the emails, you gave a link to NEJE Wiki
Boot Fail / Abnormal Startup
It said that if the system does not start normally, you should disconnect all the cables from the control unit and check the system’s startup. Indeed, the port started working properly without the cables. Now, I plan to connect one cable at a time and monitor the port’s status. If you are interested, I can provide a video.

Okay, it is recommended that you connect the cable when the DC power supply is disconnected.
(You can keep the USB connection)

Good evening, dear friend. So, what has been found out:

  1. Connected all the loops in turn, Y-l, Y-r, Z, the port remained open. Then connected the laser loop (4-pin connector) - the port remained open. When connecting the 2-pin connector, the power and port were disabled. When trying to reset the power and usb, the power did not turn on. When disconnecting the 2-wire connector, everything was restored and the port worked. Tomorrow I will check the loop for short circuits.

Good evening, dear friend. Thank you very much for your help, everything is working fine.
I am now looking for information on how to properly configure LightBurn for NEJE MAX4. I would appreciate any assistance you can provide. Once again, thank you so much for your help.

You’re welcome, you can contact us with any questions.