Thank you. It’s working but in Chinese, witch is the default. I want to try it working in English but my Mac 🖥 does’nt detect de board in the serial port. I have pressed boot button and at the same time EN button which I guess is SW3 (is EN button between the SD micro card and the speaker connector...

Hi, 1. The reason the board doesn't start is that you didn't turn on the power switch. It's in the green box I drew in the attached picture. Actually you can find this picture in Korvo's document here: https://github.com/espressif/esp-skainet/blob/master/docs/en/hw-reference/esp32/user-guide-esp32-k...