Chosen Solution
What part is this? My Macbook Air 1466 won’t switch ON. I tried SMC, PRAM reset nothing works , After opening the MacBook I noticed this part fused. What part is this? Could it be responsible for No charging light and macbook not switching ON?
OK, the two large blocks are Inductor coils. The solder joints are what I encounter as the yellow crust is just flux that is left on during the manufacturing process. They look just fine! I think we need to start the proper diagnostic process. So starting with the MagSafe connector and port are the surfaces clean and the cable not damaged? Apple Portables: Troubleshooting MagSafe adapters Does the MagSafe charger LED go on when plugged in? If so what is the color and does it change? Amber or Green, or not at all!Is the LED light dim or properly lit?Is it the correct charger and a REAL Apple unit? (see below for more on this)Have you replaced the battery? It might be time. Lets give this a try - Take the battery out, with nothing plugged in press the power button for a good 15 secs, now plug-in the MagSafe charger did the LED lite? Did the system start up on its own? Let us know what you discover! The issues with knockoff chargers! Please don’t buy a cheap knock off unit as they will damage your system! Get the REAL Apple unit directly from Apple Apple 45W MagSafe Power Adapter for MacBook Air ● Don’t Replace Your MacBook Charger With a Cheap Knockoff ● OEM MagSafe Chargers vs Cheap Imposters: Teardown for Truth ● Lacking safety features, cheap MacBook chargers create big sparks ● FAKE Magsafe MacBook Chargers on eBay - Watch before buying a Mac Charger
