820-4924 no keyboard, no trackpad

ajdoc

Member
With new keyboard/trackpad/trackpad cable same story.

Keyboard connector:
PP3V3_S4 = 3.42V
PP3V42_G3H = 3.32V

Trackpad connector:
PPVIN_S4_TPAD_FUSE = 13V
PP3V3_S4_TPAD = 3.32V
 

dukefawks

Administrator
Sorry, this one will be listed under SPI devices, can you check again? Was this liquid damage?
Also check if it works when you are in the boot menu, hold down ALT key when turning on.
 
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ajdoc

Member
No Title

No problem Duke.
No devices under SPI.
ALT not works during boot (on ext USB keyboard works fine)
There is just one small liquid marks like on photo bellow (no other signs of liquid).
 

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dukefawks

Administrator
Have you taken the board out and inspected everything, trackpad connector first of course. Does the trackpad click when powered on? These force touch ones don't click without power.
 

ajdoc

Member
Yes, I removed board and checked the other side and rest looks good.

There is a click on trackpad (single, not double as normal force touch).
 

dukefawks

Administrator
So there is no click when off and there is a click when on? Have you swapped a known good trackpad and cable together?
 
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