This liquid-damaged Air has no trackpad and no keyboard. I need help troubleshooting.
I already tried a known-good trackpad cable and a good keyboard without success. A known-good logic board in the same topcase shows functional keyboard & trackpad, so the topcase and daughter board should be ok.
I did find a short to ground on PP3V3_S2SW_IPD which I traced to a shorted UT360; replacement restored PP3V3_S2SW_IPD but not functionality.
I already tried a known-good trackpad cable and a good keyboard without success. A known-good logic board in the same topcase shows functional keyboard & trackpad, so the topcase and daughter board should be ok.
I did find a short to ground on PP3V3_S2SW_IPD which I traced to a shorted UT360; replacement restored PP3V3_S2SW_IPD but not functionality.