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Now that the board is cold I get 0.118

Yes it's present, 3.3V

The boards all have CPUs, so 0,150 is okey? I have replaced U7300 as well. But now the board won't start anymore

No S0 lines as far as I can tell

Getting really frustrated by this board and I need someone smarter than me to explain what is going on. When I got the board it was water damaged but started with RAM beeping. I found that there was no PPDDR_S3_REG voltage, and there was a short on the rail. I have now replaced every capacitor...

It's seems to me that all power lines needed for this to start are present: - PPBUS_g3H = 8,6V - PP3V42_G3h = 3,41V - PPV5_S5 = 5V - PP3v3 = 3,3V - PP3V3_S3 = 3,3V - PM_SLP_S4_L = 3,3V So whats the next step here?

There where a couple of ripped caps above U6201, replaced U6201 and added the caps. All good now, thank you.

Just replaced SMC and U7000 and the MacBook now works fine except the audio output on headphones is really low. Anyone seen this before?

Just an update, once again Duke you are right, it was the cable.

ok, thanks

Ok, it was fucked but I have replaced the cable and connector on the logic board. Replaced with a 2013/2014 cable

Got this with broken backlight. 12.3V on backlight. Replaced U7700 and Q7701 and I now have 52V on backlight output but still no backlight. I have reset the PRAM but still no luck. I have also tested with a 2013 LCD but still the same. Am I looking at a bad LCD screen here?

Of course, it was pin 17 if I remember correctly

My bad, poor soldering on one of the pins.

Badly corroded around U7100 and no PPBUS_G3H. Removed the old one, added a few jumper wires and soldered on a new U7100. It now starts and works fine, the problem I'm having now is that it always "detects" a charger even if not connected. It senses wether I'm using a 60W or 85W charger but does...

I have already put back the original U6100 since it didn't make any difference, I guess I'll try an SMC reflow first and then replace or re-ball.

Q8150 looked fine but I replaced it anyway, unfortunately it's the same :(

No it is not power cycling, when I do get CPU VCORE and ALL_SYS_PWRGD they stay high but I get no boot, only fan spin. I have replaced U1950 and tried with another U6100. All resistors look good but maybe a bad capacitor or something. I'll check Q8150.

My god, now all_sys_pwrgd is missing again. It seems like I jumped to a conclusion a little to fast. It seems like CPU VCORE and ALL_SYS_PWRGD comes and goes. Anyone got any ideas?

Hmm, CPU VCORE Missing again so probably something else :(