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HI, This is not any damaged board. when it turns on chime and white screen remains. Removed a ssd and tried to boot from usb same issue. Did pram, Clean me region using medusa no change. Tried another screen same issue. I get 26v on C9017. L9004 3.3v. Really appreciate your advice.

Hi Info2 this is SOLVED. R5710 was accurate. But as a last option i replaced R5710 and C5710. all good. Thank you again for your help.

once shutdown from the OSX, removed keyboard and tried to on with pads not working. only wayto turn on is reconnect the charger

oh sorry, as long as SMC_ONOFF tied to ground , power drops and remain 0.01mv and fan stop when you release after 2,3 seconds it boots by itself. all this happen board out on the desk, connecting charger and usb mouse only. when it boots back on the machine it works fine and boot the osx and...

When shorted the power pads SMC_ONOFF_L is low after relaese power pads back to 3.3v and fan spins again.is this normal?

board alone on the desk shrting power pads can turn on and when turn off it restarts my itself.

Here are the RTC rails. RTC_RESET_L:3.3V PCH_SRTCRST_L: 3.3V PCH_INTRUDER_L:3.0V PCH_INTVRMEN: 3.3V Once shutdown from the power button. only can start by disconnect and connecting the charger. once boot all the keys are functioning.

Hi all, This came with no any liquid damage. But broken cap C5725. initial issue is can't turn of after shutdown. Power Button works time to time. . power on when connect the charger and can shutdown pressing power button but can't turn on again. When this happen can't turn on even shorting...

Hi, This is pretty clean board no liquid dmg. PP3v42_G3H is 2.5V and no short on this or any rail. I injected 3.3V to this line and fan spings, charger lights, and works fine. I replaced I replaced the u7090 and around caps still no change. Any idea?

Hi 2info. I did clean me and change the S?No with medusa. its working fine now. thank you.

HI 2Info, I put new bios and it works fine now. Thank you very much for your hlep. This is solved.

Hi 2Info, Thank you for your reply. Vcore stable when mouse light flash. Tried SMC bypass still same behaviour. I will try with new bios and get back to you. thank you

Hi all, This board is not a liquid or any damaged. I get all the power rails accurately. Fan spins no chime. How ever got the Backlight on back of the screen but dim. No usb mouse light up but every 10 sec, light flash as same as we turn on. It was Intermittent shutdown earlier. ANy idea?

HI all, This board was liquid dmg. around U7501 After replacing U7501 and some caps i got PP5V_s5 , pp3v3_s5 . but mising slp singal. I replaced U1950 and i got fan spinning, CPU_Vcore but no chime as missing pm_pch_sys_pwrok and pm_pch_pwrok. I replaced it again 3 times but missing slp...

Also u1950 and Q8150 area is clean and all_sys_pwrgd and pm_pch_sys_pwrok is pulsing too.

Hi Thank you for your reply. continuity to Pin 5 from R6115 anf R6122 is there.pin 5/6 has puling 3.3v to 1.9v. PP5v_s4rs3, PP5v_S0, and other rails pulsing to around 1.5v to 0v.

Hi All, This is liquid damaged board. but not much. Upto pp5v_s5 and pp3v3_s5 stable.Other than all power rails including Vcore is pulsing for a second.fan does not spin at all. pp5v_s0 also pulsing come around 2.3v and 0v. What can see TP[01] SPI_MOSI TEST POINT IS BURNT. But the connectivity...

Hi, NO it does not boot with preinstalled USB. What i mean It boots with Any USB bootable drive to diskutilities and OSX install screen.

Also if the GPU is thr problem will this boot with OSX install usb?

HI 2info. Finally i got the Madusa 2 and did clean me successfully. Still the issue is there stuck in apple logo. how ever it boots with OSX install usb to install screen. Tried with external usb Hdd same issue. Apple logo stuck about little over to 30% of loading.