You can find the software on their site if you’re using windows:.A.) Grab the "unlocker" from here: ( (use "raw")ī.) dfu that with a: dfu-util -d 1d50:607f -a 0 -s 0x08005000:leave -D unlocker-firmware.binĬ.) your core should restart, flash some lights, and end with a 'green' flash before wiping saved wifi profiles and resettingģ.) Make sure you have st-flash installed, or have a copy of the ST-Link Utility software But that’s not you, you want to fully erase your core, or re-write your bootloader, and you’re not scared of “bricking” anything. Welcome! The bootloader on the stm32 is protected by a “write protect” flag that helps prevent accidental “bricking” of a core for those without a programmer shield / st-link programmer. #despite what literally just warned me about a second ago:ġ.) Really make sure you have a working programmer shield and an ST-link programmer.Ģ.) Is this a brand new core from scratch (that you made? nice!) goto 3, or is it this a core that came from Spark - goto “unlocking your bootloader” #So you’ve decided to reflash everything anyway, This is pretty safe and easy if you have the right tools, but really please don’t do it unless you have a ST-Link programmer and a programmer shield, and you can confidently recover from an erased bootloader (a “bricked core”). ![]() This maybe goes without saying, but I’ll say it anyway: These instructions (*which you probably don’t need to try, and maybe shouldn’t do unless you are okay breaking things *) tell you how to remove and replace the bootloader on your core. Continuing the discussion from Won’t connect to internet - rapid green flashing:
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