Jailbreaking my car's navigation system just so I can change the time
Summary
Technical exploration of jailbreaking a car navigation head unit to change the time. The author reverse engineers an embedded Linux system, circumvents DRM constraints on an SD card, and demonstrates a kernel-pattern-based code-execution path to patch the settings and alter timezone data. The piece offers practical insights into embedded device security, automotive infotainment risks, and the limitations of older hardware security models.