How to find your MacBook's diagnostic menu

“Apple Diagnostics offers a quick, built‑in hardware test for MacBook users, helping them distinguish between software glitches and physical failures. By guiding users through a startup‑time diagnostic process—whether on Apple Silicon or Intel models—Apple empowers consumers to identify issues such as display, keyboard, or trackpad malfunctions without immediately resorting to service centers. For U.S. consumers, this can translate into lower repair costs, reduced downtime, and a smoother experience within the broader Apple ecosystem. Expert Analysis: The availability of a self‑service diagnostic tool strengthens Apple’s brand loyalty by reducing dependency on authorized repair shops, potentially reshaping the U.S. repair market and encouraging a shift toward more consumer‑direct troubleshooting.”