USB DFU mode for ESP32-S2-Saola-1

dcexpert

USB DFU mode for ESP32-S2-Saola-1 [Copy link]

 

After connecting the USB OTG of ESP32-S2-Saola-1, if you hold down the BOOT button during reset (GPIO0 is grounded), it will enter DFU mode. Under Windows, an unknown device of ESP32-S2 and a USB serial port device will appear.

You can use the software Zadig to install the driver.

Once installed, it will be recognized as a generic serial device

According to the official instructions of Espressif, you can use the dfu-util software to write dfu firmware, but I didn't try it because I don't have the dfu file yet.

dcexpert

Found an online dfu update website for ESP32-S2:

https://dfu.stetelthings.com/

First use the new version of the Chrome kernel browser. After connecting ESP32-S2 via USB OTG and entering DFU mode, press the Select ESP32-S2 button at the bottom of the website to connect to the device:

After connecting to the Internet, you can download the dfu firmware.