Adventures of My Oven

Explore the fascinating intersection of power analysis, fault injection, and oven repair in this 36-minute conference talk from Recon 2023. Dive into the world of Samsung ovens that display inaccurate temperatures and learn how to bypass code protection on Toshiba TMP91FW microcontrollers using a ChipWhisperer-Husky. Discover the process of firmware recovery, reverse engineering, and adding new functions to output internal temperatures and control signals. Witness a practical demonstration of improving oven performance through firmware patching, including cooking a souffle while displaying actual oven temperatures. Gain insights into reverse engineering techniques for both older and newer microcontroller versions, and understand how these skills contribute to e-waste reduction and support the right to repair movement. Learn about binary patching, disassembly tools, and the potential for repairing defective ovens without replacing entire control boards.