Patching my guitar amp's firmware

(mforney.org)

31 points | by birdculture 3 days ago

3 comments

  • shermantanktop 33 minutes ago
    I’m always very impressed by this type of hardware/firmware reverse engineering. So many places to get completely stuck and fizzle out.

    I assume that happens a lot, but few people would write a blog about their inability to break a protocol or decipher a memory layout.

  • tyfighter 42 minutes ago
    Nice :) I did this for my Axe-Fx II and III a long time ago, but I never published any of it for fear of being sued. Really, I just wanted to learn about DSP techniques and that was enough for me.
    • alexjplant 33 minutes ago
      Sorry WHAT?! I was under the impression this whole time that this wasn't feasible due to asymmetric key encryption with the private keys baked deep into the hardware. Perhaps I'm misremembering but Cliff (the founder) is very big on protecting trade secrets so I'm rather surprised you were able to. Or do you mean you were able to flash new firmware, not reverse-engineer the existing one?

      Either way I don't blame you for not writing it up. The same guy just recently accused another industry player of "infringing on [his] idea" with a product because he "filed a preliminary patent". I've been using Fractals since long before they were cool but based on this guy's forum posts I think he's having a hard time navigating the modern internet cultural landscape (the tenuous nature of his legal argument notwithstanding).

  • SoleilAbsolu 1 hour ago
    Love it! I have the THR10 non-"C" version of this amp and often wondered if it's hackable.