Patching my guitar amp's firmware
Summary
The article documents a hands-on reverse-engineering project on a Yamaha THR10c guitar amp, detailing hardware access, firmware dumping, and a custom patch workflow. It covers memory mapping, relinking, interposing code, and flashing via OpenOCD, plus a MIDI SysEx update format. It serves as a practical guide for hobbyists in hardware hacking and firmware customization.