The Apple logo would also be lit if your model has a white Apple logo on the lid. This can be subtle and is best observed in a dark room. Audible fan spin, or heat exhausting from the vents.These models use a haptic motor that simulates the feel of a click. Note: This only applies to MacBook Pros 2015 and newer, MacBook Airs 2018 and newer, and all Retina MacBooks. If you're getting any response here, your issue is more likely to be related to a blank display. Check for any signs of power that might lead you to a different problem.These are terms for a small amount of memory that contains system settings for the Mac. They can clear any incorrect or bad startup settings which are handled by the SMC. Reset the System Management Controller (or SMC).Docks or multi-port hubs are notoriously problematic, especially if they have many items connected. This can resolve any minor hang-ups in the startup process. Wait a few seconds, then try to power it on again. Press and hold your power button for about fifteen seconds, then release it. Before undertaking any of the more time-consuming solutions below, these are a few fundamentals to get you started.

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