Hi there !
I have a part-time job as laptop (most apple) and mobile phones repair.
I have got a Macbook Air A1466, with water (but i suppose tea) damage.
Removed all water traces, checked all components, no shorts anywhere.
But the problem is that the mba doesn't not charge battery and does not power up.
So i followed the line from the battery connector, back to U7201 and found that PP3V3_S5_REG is missing. Searching again and i found that i don't have the "enable" signal called P3V3S5_EN , because is missing the most important signal : SMC_PM_G2_EN
This signal comes directly from the SMC, that it was water damaged too.
It is possible that SMC is damaged, or i should check if there is other signals missing ? Important voltages like PPBUS_G3H (smc power voltage) are presents.
I have ordered a new smc chip, to swap with this one, just in case...
I have a part-time job as laptop (most apple) and mobile phones repair.
I have got a Macbook Air A1466, with water (but i suppose tea) damage.
Removed all water traces, checked all components, no shorts anywhere.
But the problem is that the mba doesn't not charge battery and does not power up.
So i followed the line from the battery connector, back to U7201 and found that PP3V3_S5_REG is missing. Searching again and i found that i don't have the "enable" signal called P3V3S5_EN , because is missing the most important signal : SMC_PM_G2_EN
This signal comes directly from the SMC, that it was water damaged too.
It is possible that SMC is damaged, or i should check if there is other signals missing ? Important voltages like PPBUS_G3H (smc power voltage) are presents.
I have ordered a new smc chip, to swap with this one, just in case...