A1286 (820-2915-B) not respond to power key

R EZ A

hello masters

i have a macbook here that when i plug ac,led light turnes to green and use 0.02A

PP3V3_S5=3.3V
PP5V_S3=0V

i flash bios but no change

do you have any idea whats problem?
thanks

R EZ A

thip laptop also has battery problem

i find SMC_BATLOW_L is low ,so PM_SUS_EN is also low
i add R7917 for laptop turn on with low battery
was it true?

now i have
PM_RSMRST_L = 3.3V
and PM_CLK32K_SUSCLK_R =32KHz

when i press pwrbtn ,PM_PWRBTN_L change

how can i find that PCH work or not?

pyry

I think your problem is that you have open resistance R5040

dupahuj

1 Did You connect correct 85W power adapter?
2 Did You try to start without SMC test mode (safe mode) ? (press and hold power button, and keep hold power button to ~7 sec, and release).?

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A1286 (820-2915-B) not respond to power key

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