Problem-led guidance
Diagnose a browser-visible device problem
Describe what you notice by choosing the closest symptom. These curated guides point to a relevant specialist test; they do not diagnose hardware automatically.
Display & Motion Problem GuideFirst separate a black, blank, or no-signal display from an image that is visible but looks wrong. Then follow only the manual or browser-visible path that fits.10 recognizable symptomsController & Input Problem GuideSeparate connection and platform problems from browser-visible controller, mouse, and keyboard input, then open only the test that can observe the reported behavior.15 recognizable symptoms
Need a known test instead? Use Find a test. Need several checks for one task? Open Guided checks.