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Old 02-20-2020, 01:07 AM   #1
crazeej
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Unhappy 820-2850 a1286 MacBook Pro No Keyboard/trackpad

Hello Guys, i have this uncommon fail of trackpad and Keyboard where:
No Keyboard and trackpad in OS -> USB Mouse works fine!
At Startup Press Option Key -> No Reaction!

I noticed If i Close the Screen - Screen wont Turn Off!

Measured around Keyboard 3v3s3 there. Pp3v42 there and smc on Off ist 3.42....

Smc issue maybe?
Where ist z2_boost_en coming from? OK trackpad, but which Signal activate the en Signal in the trackpad? So lost on this... Maybe eine non certified Tech can give me a hint?


U5805:
Pp18v5S3 0v
Z2_boost_en 0-20mv
Smc_lid 3.42
Button disable : 0v pretty Sure measured a Lot of stuff.

Thx a Lot.

Last edited by crazeej; 02-20-2020 at 01:08 AM..
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Old 02-21-2020, 01:38 PM   #2
crazeej
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Default Re: 820-2850 a1286 MacBook Pro No Keyboard/trackpad

Nothing? Nobody Had this issue?
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Old 02-25-2020, 08:15 PM   #3
Pedro147
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Default Re: 820-2850 a1286 MacBook Pro No Keyboard/trackpad

Maybe try external; wired keyboard ? Good luck with the rest, I am on my learner plates

Last edited by Pedro147; 02-25-2020 at 08:16 PM..
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