How to update firmware on the ESP32 side

[alexphobby]

Hi there,
I tried to flash the latest AT firmware and the ESP doesn't work on AT Commands.

Can you please explain step by step what to do after the basic steps below?
We have two scenarios, AT and Micropython

1. Download latest firmware from ESP (multiple bin files)
2. short circuit IO9(the pin near the antenna connector) to GND
3. Open ESP Download Tool (windows), select ESP32C3, Developer
4. ...?what files to select, on which start address?
5. ..

Thank you

[mmMicky]

Here is the download link of ESP32-C3-AT firmware
https://docs.espressif.com/projects/esp-at/en/latest/esp32c3/AT_Binary_Lists/index.html
You can choose a firmware you need in it.
The release version firmware is usually packaged into one, and the upload address usually starts from 0.
No need to modify communication pins. After the upload is complete, it needs to be powered off and on again to run.