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However i can't see trace from pin 20 or from r8141...even scraping...

why? i have changed u7501...

r8141 (same value) and u7501 changed ,,,,still 0v STILL 0V EVEN WITH 10K RESISTOR

3,3v

0v no shorts on the other side of the resistence i have 3,3v

PPBUS at 8.6V No Fan Spin I get Magsafe light (green than orange with or without battery) motherboard water spill (cleaned from another techician) 3V3_S5 present 3V3_Sus not present P3V3SUS_EN 0v PM_SLP_SUS_L 0v (no short) PM_PWRBTN_L 0,3v SPIROM_USE_MLB 0v S5_PWRGD 0v PCH_DSWVRMEN - 3,1...

Yes and short persists also removing u1900

i'm too scared that pch is dead

https://www.dropbox.com/scl/fi/fwulruf9r4yhnn4xn2e8h/Video-27-02-24-09-05-29.mov?rlkey=m9iuirnpekkht8mcco4lr9nwf&dl=0 Ppvrtc_g3h: game over?

I can’t see anything hot under thermal camera….i will try to remove u1900 How can I program smc?

is it normal that ppvrtc_g3h is shorted?

i mean bought new, not from donor board SMC_ADAPTER_EN, 0v PM_BATLOW_L, 3,3 PCH_DSWVRMEN, 0v PM_DSW_PWRGD 0,9v

ppvrtc_g3h shorted! smc brand new...

ok now i have PPBUS_G3H=8.18 3V42_G3H=3.42 3V3_S5 3,3 no voltage for PP3V3_SUS (no shorts on u8020 i have 0v on P3V3SUS_EN no shorts 0v on R1464 no shorts

even changing u8100 no luck... :(

i don't know the history of this motherboard...i've found in diode mode a super low value on pp3v42_g3h...removing l7095 and l7090, i've injected voltage on the line and found that u5000 become hot (3v 0,0100 amp) should i reball it? should i change it?

so it was unusefull to buy another u8100? (50 Euro🥲)

What do you think

i've check on all 6 big coil...all ok except P3V8AON sw1/sw2/sw3 shouls be 0.350, i have 0.150 reflowed u8100...no luck so you think about u8100.....but why you give me a link about wifi chip ?

PPBUS_AON 12,2v stable and 3V8_AON 3,7 stable on u8100 PP1V2_S2 0v floating 1,2 PP3V3_S2_UPC floating 3v/2,5/1,6/0 PP1V8_AON_MPMU 1,7 MPMU_VREF_ADC is 0,020v on u7700 PP0V72_S2_VDD_LOW 0v PP1V2_AWAKE_PLL 0v PP1V8_AON_SPMU 1,7 stable PP0V855_S2SW_CIO 0v PP0V805_S1_VDD_FIXED 0v PP1V2_S2_CIO 0v