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I made mistake and my ground probe touched some part of the motherboard and burnt something. I don't know what exactly burnt, but the short came from that location just like the smell. Couldn't find anything burnt with my eyes. The logic board is doing pulse by itself every 4 sec. I can hear...

Thanks for the tips. Unfortunately, I didn't change anything :(.

U1950 : no visible corrosion Pin 7 : pulse at 2.40v Pin 3 : pulse at 1.10v L7630 : Pin 1 (P1V05S0_LL) : pulse at 1.2v Pin 2 (PP1V05S0_REG_R) : no pulse L7310 : Pin 1 : no pulse Pin 2 no pulse L7320 : Pin 1 : no pulse Pin 2 no pulse I removed Q8150 but I can't notice any change on the...

I tried to start in SMC_bypass mode, but my fan will not speed at all (should turn at full speed from what I understood) and 0V on PM_SLP_SX_L. These are the highest values I caught by trigger SMC_ONOFF_L repedeatlly : ALL_SYS_PWRGD pulse at 2v DDRREG_EN : pulse at 2.37v PM_SLP_S4_BTMUX_L ...

Values when charger is plugged : PM_RSMRST_L is at 3.03V and is stable PM_PWRBTN_L : 3.42v PM_SLP_S5_L is at 0v PM_SLP_S4_L is at 0v PM_SLP_S3_L is at 0v PM_SLP_S0_L is at 3.34v When I trigger SMC_ONOFF_L : PM_RSMRST_L is at 3.03V and is stable PM_SLP_S5_L pulse to 1.5v then go back to 0v...

Other information : When plug in the charger in PP3V3_S4 pulse at 0.6V then go to 0V PP3V3_S0 pulse at 0.7V(sometime 2.41V) then go to 0.07V PP3V3_S3 pulse at 0.7V then go to 0.07V

When I trigger SMC_ONOFF_L, PM_PWRBTN_L drop at 0.32V and come back to 3.42 after release. Sometime, PM_PWRBTN_L Stay at 0.32V until I cut the power.

Hello 2informaticos and thanks for the answer :). Thanks for the correction. I put a 100k resistor instead of the 1M in place as R1301 and have now PCH_INTRUDER_L at 3.29V. Unfortunately, still no sign of life. Assuming this ...

Hello, I'm trying to fix a motherboard who doesn't turn on from an 2015 macbook pro 13"" 820-4924-A. No trace of corrosion at all. When I plug the charger, the magsafe light start from orange for half a sec then turn green then turn to Orange. I did SMC Bypass: the light on the magsafe start...