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tried connecting trackpad and WLAN withut inductors and it works fine also checked voltages around these FETs mentioned above and everything looks fine but with WLAN or trackpad (with inductors) Q8002 is not getting S4_PER_EN, therefore no PP3V3_S4

No, in cold state if WLAN or touchpad or both at once are connected it doesnt work, only if the machine is wormed up then it does, it also works in cold state, only when both devices are disconnected

There is no pulse at PM_SLP_S5_L at all, I do have a pulse at PM_PWRBTN_L, it seats at 3.44v and it goes down to 0.14v after PWR button trigger, PM_RSMRST_L reads 3.04v

Ok, so the SMC_ONOFF_L line reads 3.42v and it drops to 0.41v after pressing PWR button, PP3V3_S5 is present just like PP3V3_SUS but PP3V3_S4 is missing because Q8002 is not getting S4_PWR_EN, and this is because U8170 is not getting PM_SLP_S5_L which is generated by PCH and SMC_S4_WAKESRC_EN...

SMC bypass doesnt work in this condition, if the machine is cold and either touchpad or WLAN is connected then there is nothing you can do with it, its completely dead. There is something that its common to both touchpad and WLAN that PCH doesnt like or the PCH itself is faulty i think

No, its not the U2080, connecting WLAN or touchpad in cold state brings PP3V3_S0 down to 0v because PM_SLP_S3_BUF_L is not present, this line is not present because PM_SLP_S3_L is not present because its not being generated by PCH

Could condition: Devices connected PLT_RESET_L and PLT_RST_BUF_L are 0v Devices disconnection PLT_RESET_L and PLT_RST_BUF_L are 3.33v Hot condition: In both conditions (devices connected and disconnected), both power lines are at 3.33v

yeah.. thats what I get all the time on my desk.. it cant be anything simple but always some mistery fault.. :D I think its a faulty PCH, I dont think it could be anything else

ok, so it turns out that we have image on LCD and HDMI but need to whait a bit longer for it, I found out that when the machine is cold it runs with touchpad and (I made a mistake in previous post saying SSD) wifi card disconnected otherwise it doesnt start, when the machine is warmed up I can...

No I didnt check new display as we dont have any other one in the shop and yes I get 5v for LCD, and since HDMI doesnt give any image I would assume that there is something wrong with RAM or north bridge?

USB mouse works fine but i dont get anything through HDMI

ok, so I tried to run in on 85w charger and now all the power lines stays on, macbook is turning on but there is no image, no backlight, the magsafe LED goes on green and changes to amber like before, when trying to turn it on with SSD or touchpad connected, it wownt turn on(got it only once to...

SMC bypass didnt help - it doesnt do anything, voltages around FDMF6808`s are looking good, the charger im using in the shop is 60w but I assume that the owner have an original charger on which it stopped working, that machine was in other repair shop where they said that there is no way to fix...

Hi, I got a macbook from our supplier that was working fine, they said that they truned it off and the next day it didnt work anymore. There is no signs of water damage on the board, when I connect the charger the magsafe LED turns on green then amber and stays like that, there is no signs of...