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820-01700 trackpad clicking but no movement

M

Mineccia15

Member
Good morning,

I have an A2141 MacBook with trackpad just clicking and keyboard logically not working not water damaged.

I found a black please inside the top let part of the trackpad connector. Replaced and also replaced trackpad, same issue.

I replaced U8210 and U6860 without changes. All the voltages are there, MacBooks boots and charges normally.

Tried another keyboard and no difference. Tried SMC reset with external keyboard and mouse and does it. I am a bit lost.

What can the issue be?
 
2informaticos

2informaticos

Administrator
Staff member
Post J6800's basic volatges: pins 12, 14, 34, 11, 15, 19.
Of course, check them with trackpad connected.
 
2informaticos

2informaticos

Administrator
Staff member
SPI_TPAD_EN_CONN must have same behavior as TPAD_SPI_EN signal; is just 0 ohm resistor in the middle.
Be sure the resistor is good.
 
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