Got this macbook air that was not working.
after opening i found water damage on LID sensor, daughter board (where keyboard connects) and trackpad
There was spilled probably coffee (i’ve cleaned everyhting with pure water and afterwards with isopropyl alcohol
i’ve disconnected LID sensor, repaired flex on trackpad (the part thet connects to trackpad there were some pads heavy corroded to i’ve repaired them) and i was able to put macbook to DFU and restore.
but the keyboard was not working at all (no caps lock light). After dfu was done i’ve connected external keyboard and setup mac fully.
power button is working (touch id not - there was no error it only stays on scan your fingerprint (but it doesn’t read anything when you put finger on it)
i guess keyboard should be ok (as i was able to get to DFU and there is key combination needed (control + option + shift + power button)
on daughter board there were 2 chips (one bga and other somekind of mosfet (big ground in middle and pins on easch side) the were water damaged so i took them off repair solder under and put back on.
Is there any schematics for this daughter board ? So i can check what is not working here ? I don’t understand how power button can work (it’s conmected to daughter board or no ?), how i was able to get to dfu if keyboard is not responding ?
btw i’ve checked motherboard under microscope and it’s spotless no corrosion or any water damage.
any idea what can cause this strange issue ?
after opening i found water damage on LID sensor, daughter board (where keyboard connects) and trackpad
There was spilled probably coffee (i’ve cleaned everyhting with pure water and afterwards with isopropyl alcohol
i’ve disconnected LID sensor, repaired flex on trackpad (the part thet connects to trackpad there were some pads heavy corroded to i’ve repaired them) and i was able to put macbook to DFU and restore.
but the keyboard was not working at all (no caps lock light). After dfu was done i’ve connected external keyboard and setup mac fully.
power button is working (touch id not - there was no error it only stays on scan your fingerprint (but it doesn’t read anything when you put finger on it)
i guess keyboard should be ok (as i was able to get to DFU and there is key combination needed (control + option + shift + power button)
on daughter board there were 2 chips (one bga and other somekind of mosfet (big ground in middle and pins on easch side) the were water damaged so i took them off repair solder under and put back on.
Is there any schematics for this daughter board ? So i can check what is not working here ? I don’t understand how power button can work (it’s conmected to daughter board or no ?), how i was able to get to dfu if keyboard is not responding ?
btw i’ve checked motherboard under microscope and it’s spotless no corrosion or any water damage.
any idea what can cause this strange issue ?
I've seen what this community can do, so I'm pretty sure you guys can help me out.
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