Hi Im working on a Macbook air A1466 which was water damaged and was dead with no led on charger.
I currently have it powering up fan spin. All major voltage are present.
I have no chime or screen and am not sure of usb activity but usb mouse red led flickers at the start of power up.
Currently I have no EDP_BKLT_EN and no output from Q77706. U7701 has power on pins C4/D1/C1 but no output .
The unit draws about 350ma.
L7701 ha no voltage on it due to Q7706 not passing voltage pins 3 and 4 have 8v.
i have flashed the bios with a file from the forum but still the same.
Any help welcomed
I currently have it powering up fan spin. All major voltage are present.
I have no chime or screen and am not sure of usb activity but usb mouse red led flickers at the start of power up.
Currently I have no EDP_BKLT_EN and no output from Q77706. U7701 has power on pins C4/D1/C1 but no output .
The unit draws about 350ma.
L7701 ha no voltage on it due to Q7706 not passing voltage pins 3 and 4 have 8v.
i have flashed the bios with a file from the forum but still the same.
Any help welcomed