820-02536 Kb/Trackpad issues after burn trackpad, replaced in UT360

[Vliegenier04]

Hi,

Having a MBA M2 A2681 with trackpad / keyboard issues. No caps lock light, do have keyboard backlight but kb/tp not working. Keyboard does work to put out of sleep mode / power on, but unresponsive after that.

I have found an overheating UT360, replaced that with donor. Yet no change in trackpad / keyboard behaviour. I have tried multiple trackpads / cables / keyboards but nothing.

Where should I start looking?

 

[2informaticos]

Check all circuits, traces and associated resistors from page 86.
Also check LT400/2/3.
Be sure JT400 gets correct voltage on its power rails.