Adafruit ESP32-S3 Manual page 256

Connect
Run the following command, replacing the identifier after
dev/cu.usbmodemxx
esptool.py --port COM88 chip_id
You should get a notice that it connected over that port and found an ESP32-S2/S3.
Installing the Bootloader
Run this command and replace the serial port name with your matching port and the
file you just downloaded
esptool.py --port COM88 write_flash 0x0 tinyuf2_combo.bin
Don't forget to change the
There might be a bit of a 'wait' when programming, where it doesn't seem like it's
working. Give it a minute, it has to erase the old flash code which can cause it to
seem like it's not running.
You'll finally get an output like this:
©Adafruit Industries
or you found above.
/dev/ttySxx
name to match.
--port
with the
--port COMxx
Page 256 of 263
,
/