Claude Code reverse engineered the entire 12GW firmware into C with a single prompt in under 24 hours, and it works! The field of software engineering has changed completely.

00:00 - Claude vs Claude Code, there is a difference!

02:39 - Hacking a 121GW multimeter for use with the ST-LINK V2 programmer

08:48 - Be in awe at my Prompt Engineering skillz

11:50 - Installing GCC + Ghidra

14:47 - Reverse Engineering the Bootloader is DONE!

16:21 - Start on the Firmware now

19:39 - Next morning the firmware is COMPLETE!

23:14 - Testing Zombu4's RE version

24:23 - Can Claude program the new firmware directly?

26:39 - Conspiracy theory time...

27:07 - Why is it this painful?

29:20 - Let the HUMAN test it!

30:10 - Testing on the real hardware! + Source code

32:29 - Downloading the Binary the old fashioned way

33:54 - Does Bluetooth still work?

36:57 - Conclusion: Software Engineering is so OVER

https://github.com/EEVblog/121GW-Multimeter-Firmware-RE

Zombu4's version in assembler: https://github.com/zombu4/121GW-Open-Firmware/

Forum: https://www.eevblog.com/forum/blog/eevblog-1784-claude-code-reverse-engineer-121gw-firmware-success!/

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