Hi everyone,
I’ve seen this topic and read as much as i could about it.
But let me tell you what happened from the start.
I have the necessity to customize both bootloader and firmware of my CubeOrange+, so what i did is modify both of them on VSCode, compile them and flash the .apj via mission planner. As far as i know, to upload a custom bootloader, you have to build the firmware inside the same repo where your custom bootloader is, cause the .apj is a file that merges both of them, so by uploading firmware, i have the possibility to upgrade bootloader.
I added a function in the BL that made it blink for 15 sec.
After upgrading them both, the cube bricked (stable led, no blinking).
Here starts my journey into trying to unbrick the cube. I’ve tried soldering ST-Link cables to FMU connector (view pic below).
I’ve used STM32CubeProgrammer and STM32 ST-LINK Utility, but i can’t communicate nor see the Cube.
Does anyone have a guide or more precise instruction on how to execute the unbrick and later the upgrade of custom bl and fw.
Thank you so much if you read it, thank you even more if you can help!!