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OK, thank you. Ill give it a try.

3V3_SUS = 3,313V 1V05_SUS = 1,047V PM_DSW_PWRGD = 3,491V SMC_ADAPTER_EN = 3,477V PM_BATLOW_L = 3,309V PCH_DSWVRMEN = 3,190V PM_RSMRST_L = 3,280V RTC_RESET_L = 3,308V PCH_SRTCRST_L = 3,308V PCH_INTRUDER_L = 2,860V PCH_INTVRMEN_L = 3,205V

I am not very familiar with there "newer" devices. What settings need to be changed and how to do it? I only once installed windows on a 2017 Touchbar intel device. Good to hear that the article seems to be a reliable source. I found it last week and cut the power traces to UL000 on 3V3_S2...

If i sohrt pads of R5016 PM_PWRBTN_L falls from 3,3 to 0V. But i could never observe any kind of pulse on PM_SLP_S4_L on ym scope if i shorted those pads.

Yes, sorry. I skipped mentioning this. Every rail above 5V_S3 is there, i could not find shorts on any rail on the board and SLP_S4_L is missing causing 5V_S3 and all rails below to be missing too.

Hello, this 820-2936 had waterdamage. Missing trace near Q5300, waterdamage by Q3880, SMC (reflowed), Q5030, the usually... I fixed everything visible but its not creating PM_SLP_S4_L. Just to be sure id like to get help with it so i dont miss/forget anything.

I was working on this device and encountered some intersting new facts. Maybe this helps point in some direction. - I cut 3V3_S2 (the previously next to UL000 shorted line) power traces to the Wifi IC (as its easier to undo than removing it and should have the same effect). Still crashing. -If...

Thank you. I inspected that area already closely and havent found any issues. Also i had it in the UC after i cant fix it on my own. Ill try heating both - nothing to loose here.

Thank you. Ill see what i can do.

Sadly the bios also did not fix it. I used the IC i made for the same board in my other thread. I dont think thats the programming but do you have a known good file for me - just in case my "good" somehow is not wotking correctly?

I took a Bios chip from another 3115, flashed a new File with a clean ME on it but still no change.

In SMC Bypass (12.3V checked) U7400 pins, 46, 19, 29 are pulsing, as in "normal" mode before. And L7510, L7520 still steady 0V on my scope, no pulse.

AVREF_SMC is 3.3V, steady. R7402 150,4 kOhm R7403 182,3 kOhm I resoldered both. Both have 12.57V at pin 2 steady and 12,4V at pin 1 pulsing. But i guess thats because 5V supply of U7400 is also pulsing, resetting the IC and Path to GND for TON Pins with every pulse... In SMC bypass mode i get no...

U7400 (measured at IC pin): Pin 1: 0.533V Pin 19: 5.06V Pin 29: 5.06V Pin 46: 5.01V Pin 47: 3.306V Pin 48: 0.645V R7402 149,5 kOhm R7403 182 kOhm I resoldered both.

Thank you. Yes, ALL_SYS_PWRGD is also pulsing. Everything above and 3V3_S5 is stable. 5V_S3, 1V5_S3, 1V8_S0, CPUVCCIO_S0, VCCSA_S0, PPV, T29BST_BOOST are pulsing. PPBUS_SW_BKL, PPVCORE_S0, CPUIMVP_S0 are steady 0V (confirmed with scope). Any rail/coil i forgot thats important?

Thank you. ALL_SYS_PWRGD measures steady 3.308V at U2650.

Ok, Thank you. Ill try to reall it. If it wont work is it possible to use the board without the IC (and without wifi)? I read about this possibility in another forum but not sure if its reliable...

This 820-3115 came to me dead. I fixed a short on 3V42 and now it has quater fan spin. PP3V3_S5 is stable, PP5V_S3 is pulsing every 5 seconds cause PM_SPL_S4_l is also pulsing. Not really sure where to go from here. Any known suspects like U1950 on 00165? I did replace U7200 and clock ic so far...

Hello, this 3115 looks perfectly fine. Probably never disassembeled... It spins the fan if plugged in but thats it. No cime, No USB, no beep without ram. Its missing PPVCORE_SO_CPU, PP0V75_SO_DDRVTT and PPVCORE_SO_AXG. I followed that path and came to PLT_RESET_L missing. CPU_IMVP seems fine and...

Hello, i am working on an 820-02020. It was waterdamaged and stuck st 5V. I fixed that (Short on V3_S2 near UL000 ). I also fixed other minor waterdamage on UD560, UD550, UC300, Q5240, UP700. After that it turned back on and i could download (via RJ45) and reinstall macOS. But it always crashes...