820-00165 trackpad keyboard issue

Kyle93

Active member
This arrived heavily liquid damaged. Replaced all affected components plus the keyboard, trackpad, trackpad connector and trackpad cable.

When turned on if the option key is held trackpad works and keyboard works however once booted into OS theres no response from the keyboard or the trackpad.

Does this sound like bios issue or something else?
 

2informaticos

Administrator
Staff member
Don't touch BIOS!

Check first all the series resistors from TPAD_SPI lines; also their traces.
If all good, post U4810 voltages, once logged into macOS.
 
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