Retrieve firmware from core

Hi guys,
is there a way to download the running firmware from my core device? I’ve seen a misalignment between current code in the web build (old) and what I’ve flashed, probably from another IDE.

Since it’s compiled, I’m afraid not. Even if you extract it, it won’t make much sense anymore.

Is it impossible to decompile it, I guess…
Thanks, I’ll rewrite it as similar as possible.