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green light 12v on ppvbat 20v on dcin nothing getting warm

logic board repair-no display/power after drop green light no fan spin inspection report- no corrosion anywhere, pubes everywhere rails- g3h=12.59 3v42=3.4 5_s5=5 5_s3=0 3_s5=3.3 3_s3=0 pm_slp_s4_L=0 !!! smc_adapter_en=3.3 no corrosion found anywhere throwing it in the US so I can see...

water damage?, coke spill in november green light, fan spin, no chime with charger plugged in, no charger, running off battery, boot with folder icon plug in charger, disconnect battery, folder icon remains after running for 5 mins weird smell no apparant corrosion scratching my head, checked...

do you know the name of the software?

asking for "a mate" whats the name of the machine required to read/write the efi chip not asking for links just the name of what i need

it does a normal pram reset, but without a chime or anything on the screen

no folder icon, ssd removed, pram reset done, the fan did an extra spin, no chime

customer was told buy another store the bios is not working, after opening the macbook I found the board was never removed green light fan spins backlight on no lcd bkl 21.91v u5670 rabbit hole (why apple) Im not 100% sure how the dp circuit works on these

ok a reflow of the smc means its not running again, dont know if its still going to randomly shutdown duke, can you please tell me how you came up with the smc so i can learn from this

so reflow. reball, replace

@louis test points look fine, none broken, a little dark but in decent condition, u6100 to all surrounding resistors is good @duke this was repaired and ultrasonicd 6 months ago and worked perfectly since then

6 months ago customer spilled water on macbook, a week ago he tells me its shutting down sometimes, I ran a stress test and found the cpu was hitting 99c and throttling but I couldnt get it to shut down, I replaced the TIM and the fan, seemed to work, the next day customer says it doing the same...

history is strange and sounds like water damage, but isnt. one day working next it was dead. because this one is weird ive posted here before messing with it pp3v3 s0 1.939

it would be nice if i had some hints, PP3V3_S0SW_SSD 3.3v SSD_RESET_CONN_L 0 ssd_pwr_en 1.725 ssd_clkreq_l 2.781 PP1V05_S0_CPU_VCCST 0 CPU_VCCST_PWRGD 0, cpu is no longer getting warm, so can we go back to the original issue

PPVCC_S0_CPU is 0 obviously, pp3v3 s0. 1.9v 3v3 sus 3.3 3v3s4 0.444 other coils? the point is im missing pm_slp_s4_L, without this the cpu wont power on

macbook pro 820-3436 no power, green light no fan spin visual inspection, dirty, ssd getting warm rails ppbus 12.58 pp5vs5 5v pp3v3s5 3.3 pp3v3s4 0.45v 3v3 sus 1.94 3v3s3 0 pp3v3 s4 fet 0.334 pp5vs4 reg 0 P5VS4RS3_EN 0 PM_SLP_S4_L 0 (no i did not rehot cpu bro) replaced u1950, cpu warm still no...

Ok thanks, closed

the macbook has been returned to the customer as repaired, I just want to know what the CPU system agent core sensor is

Only the last paragraph is my question, the rest is history

logic board repair- water spill ----------initial testing---------- no backlight no lcd, powers on, chime, fan spin, green light ------------inspection report------------------- corroded- j4800, pad 1 J8400 competely oxidised, tpad cable, tpad conn tpad side, j8300, c8317 pad 1 missing, c7713...