Error "invalid header: 0x5b98cbc8" on upload

[paolodecaro]

Good evening, after uploading the MicroPython firmware to an ESP32P4 board on an Elecrow panel, when I try to upload individual Python programs I get the error "invalid header: 0x5b98cbc8". Could you please help me. Thank you in advance.

[robert-hh]

Try uploading programs with mprmote, the MP supported tool.

[projectgus]

I get the error "invalid header: 0x5b98cbc8"

I don't see this error in the screenshot, but this looks like the message that ESP32s print on early boot when they're not flashed correctly (specifically, the bootloader is not flashed correctly). If MicroPython isn't flashed correctly then Thonny (and mpremote) won't work at all.

Suggest carefully checking the flashing commands you used to load MicroPython against the instructions on the download page, and also check if the specific ESP32P4 hardware you're using is compatible - it might need a custom board definition, not the generic one.

[Josverl]

If you have uv installed, you can try uvx mpflash flash --board ESP32_GENERIC_P4 to reflash you board.

[shariltumin]

You might want to try this firmware: https://micropython.org/resources/firmware/ESP32_GENERIC_P4-C6_WIFI-20260406-v1.28.0.bin

However, to access all the features, such as LVGL and audio, you need to build your own custom firmware.

[sosi-deadeye]

Looks more like an Issue with Thonny. I have never seen this bug.