Understanding the bootloader called and QIO

Hi, This should be an easy question for you,
I would like to understand in my scenario…

[env:esp32dev]

platform = espressif32 @ ^5

board = esp32dev

framework = arduino

lib_ldf_mode = deep

HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
PACKAGES:

  • framework-arduinoespressif32 @ 3.20005.220925 (2.0.5)

which bootloader is used ?

image

How can I find which is called with my setup?

Thanks a lot

1 Like

hi @maxgerhardt … happy new year… i hope you are fine… so i guess it is using

bootloader_dio_40m

if i want to replace it and use a brand new version of bootloader_dio_40m…
Where i should place it ?

Thanks a lot

This is already the right folder for it, coming from arduino-esp32/tools/sdk/esp32/bin at master · espressif/arduino-esp32 · GitHub.