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do you have any ideas what could be causing BL issues?

i also get keyboard backlight so i assume it isnt SMC lid right?

Wait, this is now turning on for no reason hahaha. But there's no backlight. just image

yes that's what i meant they both measure good i think. R8147 measures 0 ohms and r8144 measures 4.5 ohms. I assume it's good? I see schematic lists as 2.2 ohms each

all checks out ok but it came back with the 0.05 diode on 5v rail. SO i injected 5V. I can see U810 heating up clearly. Took it off, normal diode readings. Then i replaced with another "GAY" chip from a different model donor. (i'm literally trying to find the donor i got it off and can't find...

sorry i'm wrong, yes it's 0.35 diode now. My mistake but l7670 is now 1.6V. what the hell. this thing is trolling me

diode mode on pp5v_g3s is 0.05. that's almost short right?

Yep it's 2.6 on l7670 steady Diode is 0.37 interesting, i mistakenly replaced r7671 with a 10k resistor instead of 10 ohm. i replaced it back to the correct one (they are all correct now) and now it doesnt show any sign of life, no track pad click either. I can see that p5g3s is only 90 ohms...

i get 0V on all the coils around the CPU I get 12.3V on L7030 3.3 on l7690 2.6 on l7670

Actually i have audio board disconnected entirely just in case, is it required to post?

This one had a little damage with r7679,r7678,r7677,r7671. replaced them all, can't see liquid damage anywhere else but it did have a short with C7676, replaced that too. Now the trackpad clicks so I guess it's kinda turning on but no post

FIXED! U6903 change solved it. you legendary legend you!

R6910-13 all good U6903 pins: 1. 12.3 2. 0.8 4. 0.8 8. 0.8 14. 0.8 16. 4.8 20. 5.1 24. 0.8

Got 0.359 on the faulty board and 0.45 on a CPU dead board same model

this one has 5V on amp meter, i already replaced the two CD chips, no difference PPBUS is 12.3v PP3v3_g3h_rtc is 0.8V though

This one had no liquid damage, but was plugged in and powered by an external monitor before it fried. I replaced one of the CD32 chips as nothing was coming up on amp meter on that one port. then i got the 5V back on that port. Just in case replaced both of them in case one was causing the no...

My Lab PSU is currently waiting for a fuse since i blew it up so I can't right now :( PPBUS diode to ground is 0.712 Pp3v42 diode is 0.3 DCIN_G3H is only 1.7V, that's too low right? DCIN_G3H diode is 0.13

Hi there! i feel silly for posting this but i'm a little rusty it seems. This should be a fairly basic issue but here we are No green light, no PP3v42, no short on PP3v42. I know Pp3v42 is required to enable green light, so the main DC in connection must be the issue? there was liquid damge...

SMC_reset is 3.371v but the last two digits will fluctuate constantly between 3.365 and 3.380 and SMC_onoff_l is 3.41v very steady. SMC bypass works but thats because power cycling the machine works anyway I can use SMC_onoff_l to turn it on but it'll still turn off and on (or at least...

no difference with the pads. I can tell it's bootlooping after being shut down until i completely get rid of power and put power back into it. So essentailly to get it to turn on again i would have to unplug DC and then unplug the battery and plug it all back in. then it will come back on...