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I have a liquid damaged Macbook Air and bought a Nice wire Magsafe 2 45W charger which gave me a green light. After the disassembly, I have no green light. I have not damaged anything during this. Is it possible that this has happened because it is not a genuine charger? Apple do make ways of finding if the charger is not genuine to reject any input so that you can buy there chargers for extra cash. I do feel that it might be the charger as I have no diode readings no that there is no green light. The adapter sense/one wire circuit is used as a way to reject non genuine chargers but I want confirmation and other possibilities. 8.1V on PPBUS_G3H and other 8.6V Power rails? Liquid damage. I have a liquid damaged Macbook Air. Readings are 8.12V on 8.6V power lines and 3.38V on PP3V42_G3H yet no green light. PP5V_S5 is not present. S5_PWR_EN has no voltage and so, SMC_PM_G2_EN has no signal to. Is this a bad SMC? It has the 3.38V from PP3V42_G3H. Thanks. Thanks.
Sounds like you got a knockoff charger which tend to damage the logic board! While more expensive there is a big difference in the quality of the charger. Get a REAL MagSafe charger your system requires! Apple 45W MagSafe 2 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 Now you will need to fix your logic board from the knockoff chargers damage.
