ESP32S3 Doesn't Boot

Nityasree
Posts: 1
Joined: Tue Mar 10, 2026 10:14 am

ESP32S3 Doesn't Boot

Postby Nityasree » Thu Mar 12, 2026 10:14 am

I am using ESP‑IDF with Visual Studio Code to flash and boot my ESP32‑S3 board. After flashing, the device repeatedly outputs the following error message on the console:
invalid header: 0x2df33e5f
invalid header: 0x2df33e5f
invalid header: 0x2df33e5f
invalid header: 0x2df33e5f
invalid header: 0x2df33e5f
Whenever I connect my ESP32‑S3 board, it automatically starts running and continuously prints the following error message on the console
I would like assistance understanding why this occurs and how to resolve it.

mikemoy
Posts: 687
Joined: Fri Jan 12, 2018 9:10 pm

Re: ESP32S3 Doesn't Boot

Postby mikemoy » Fri Mar 13, 2026 6:55 pm

I would like assistance understanding why this occurs and how to resolve it.
Then don't you think it would be a good idea to provide more information?
Such as the exact board your using, ESP-IDF version, and any other important information.

MicroController
Posts: 2661
Joined: Mon Oct 17, 2022 7:38 pm
Location: Europe, Germany

Re: ESP32S3 Doesn't Boot

Postby MicroController » Fri Mar 13, 2026 8:40 pm

It would help us help you if you'd at least tell us which chip/module/dev board you're using.

For starters:
Make sure your flash configuration is correct ("Choose flash mode automatically" or QIO + STR Mode + 80MHz).
Then make sure you have nothing connected externally to the flash's SPI pins.

Who is online

Users browsing this forum: MicroController and 13 guests