Doenst work on battery, runs on charger but very slow
I have a 13” Retina MacBook Air from late 2018.
I have already found the schematics and boardview for this board.
The board has no liquid damage and no other damage.
The battery does not charge and the MacBook does boot but very slowly, I also can’t enter recovery mode because it keeps loading forever after I entered my WiFi credentials.
I took the motheboard out of the laptop and still the F7000 (fuse to battery) gives 0.1 - 0.5 volts.
In the schematics I saw that there is a MOSFET (Q7065) in front of the fuse, so I looked at those values and that gave me 12.56v on pin 3 (source) and 4 (gate).
If I understand the MOSFET correctly, pin 4 should have been reading 0 to get pin 5 (drain which goes to the fuse) to work and make the laptop charge?
Does anyone know why this is not happening? what should I measure next?
Is this a good question?