[M5Stack Core2 v1.1] COM port not found

[surprise]

Problem

OS: MacOS 13.6.3 (intel)
Application: M5Burner (latest version, on Aug 4)

The serial port cann't display in M5Burner application.

Steps taken

1. Tried different IDEs, but nothing worked.

2. Switched USB cables, yet COM port was still not visible.

3. Attempt to turn the USB lead upside down when plugging into the device without success.

4. I quickly press the boot button and Serial port was able to display, but soon disappeared. I seize the opportunity to click "erase" button, but it still didn't work and show the following error.

Error message:

Erase Flash
esptool.py v4.7-dev
Serial port /dev/tty.usbserial-58640309931

A fatal error occurred: Could not open /dev/tty.usbserial-58640309931, the port doesn't exist

Solution:

After removing the base and battery, I tried the 4th option and successfully erased the firmware!!!

Question:

What are the possible casues of the issuse?
How to burn the fireware correctly?
What steps should be avoid?

[ajb2k3]

@surprise Have you installed the correct USB driver and made sure that its working?

[surprise]

@ajb2k3 Thank you soo much!
I turned off the VPN, and then it worked.