I mean, that i cannot put a factory new ESP32-C3 into download mode using USB-SERIAL-JTAG and esptool alone. This only works after I flashed the firmware once (using GPIO9). I tried it several times and accepted it as a given thing. I thought maybe it needed the 2nd stage bootloader that comes with ...

Thank you for your replies. A factory-new ESP32-C3 can in fact only be put in download mode pulling GPIO9 to GND. That is, using the built-in USB-SERIAL-JTAG. One could add additional hardware such as USB-UART-Bridge allowing to pull GPIO9 to GND using serial control lines. But what's the point of t...

Dear All, I'm tasked with programming a whole bunch of custom ESP32-C3-MINI-1 boards. The board is equipped with a push-button on GPIO9. When pressed GPIO9 is pulled to GND. The procedure goes as follows: The push-button is held pressed, then the board is connected via its USB connector receiving po...