Patching odd version

[test-in-prod]

Hi! First, I'd like to thank you for such a massive effort!
Second, I'd like to preface that I am new to trying this out on my own and I've poked and prodded one of these machines I have for myself.

I've managed to dump the original firmware, but of course ... my hashes do not match to what is hard-coded in the script.

$ sha256sum stm32.bin
a5e7d77fc7b2fe38da82a7d99035cecd40749398da31f7e39634c002e7081cc7  stm32.bin

$ strings stm32.bin | grep SX
SX577-0200
SX567-0302
XSXSL

I am not sure what exact firmware version I have, so this is all the info I've managed to gather about the dump so far. I was wondering where I could go patching myself from here? The other pages in the docs still say "Coming soon..."