Lost RSA Key – How to Reset Flight Controller Without ST-Link?

General
1

Hey folks,
I’m stuck with my flight controller and could use some advice.

  • My FC requires an RSA key signature to enable.

  • Unfortunately, I lost the key and now I can’t access it.

  • I don’t have an ST-Link programmer handy.

I’m wondering if there’s a way to reset or flash the FC without using ST-Link. I’ve heard about using the BOOT button + USB with Betaflight Configurator and doing a full chip erase, but I’m not sure if that bypasses the RSA requirement or if there’s another workaround.

Has anyone here dealt with this before? Any step-by-step guidance or alternative methods would be super helpful.

Thanks in advance!

2

What Flight Controller?
Go Here - STM32CubeProgrammer

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