Hey everyone, I think I messed up my Pico4ML-Pro board. I was trying to play around with MicroPython and ended up flashing it onto the board, but now I realize I completely overwrote the factory all-in-one firmware that came with it. I didn’t back it up first (stupid, I know).
The board has a marking on it: UC-A02 Rev. E. Does anyone have the original factory .uf2 file for this thing, or know where I can get it? I just want to get it back to how it was out of the box.
So what’s happened here is that flashing MicroPython onto your Pico4ML-Pro has wiped the factory all-in-one firmware — that’s the one that handles the onboard camera, microphone, and the TinyML stuff out of the box. Pretty common accident actually, so don’t feel too bad.
The good news is that the original firmware is available through Arducam’s official documentation. Head over to the Pico4ML TinyML Quick Start guide:
Check the “First Use” section — that’s where the firmware restoration process is documented. The .uf2 file you need should be linked or referenced there. Basically you’ll put the board into bootloader mode (hold down the BOOTSEL button while plugging it in) and then drag the .uf2 file onto the RPI-RP2 drive that shows up.
Give that a shot and let us know how it goes.
Thank you! That was exactly what I needed. Found the .uf2 through the docs and the board is back to normal now. Really appreciate the help.