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Hi, My magsafe plug is showing a dim green when plugged into my macbook and it wouldn’t power up and the battery quantity indicator is blinking. I disconnected my battery from the laptop, then plug in magsafe and laptop managed to boot. I only managed to do this 2 times out of 5 and everytime i unplugged the power cord from the wall socket for 5mins or so. so when it didn’t work on the 5th time i removed the logic board and found no corrosion except for this ‘chip’ that is rusted (circled red). Would like to know if i should replace logic board based on this finding? Thanks Kelvin
When you have a dim green light it’s because power is not reaching the heart of the logic board where main circuits and charging start. The reason is often associated with the use of aftermarket chargers that may let in overpower or overvoltages, but sometimes things just fail on their own after years of work. The inductor you marked is not a major concern, they often show oxidation even if not bad. Try using another charger if you can, to rule out a magsafe failure. If that doesn’t fix things, you’ll need a logic board component level repair or a replacement.
