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This is weird the only voltage sensors are VC0C VG0C VN0C VP0R. Just to double check this is with ASD EFI 3S144

Replace ISL if short is still there can only be the SMC, I injected 3v into one of these once and the smc got a tiny bit warm just enough to evaporate a thin layer of alcohol slightly faster. I guess you could try that if you wanted to be 100%

looped and hour each OS and EFI, with and without battery No sensors fail or look weird. The slowing down of the machine is noticeable in OS asd when plugged in it take 19seconds to complete the sensor tests unplugged goes up to 60 seconds. The slowing down starts 20seconds after unplugging the...

looping sensor test now, VP0R 11.92v cant seem to find VD0R All the sensors look to be measuring ok in hardware profile

stable at 3.46v

no liquid damage, just suddenly stopped according to customer It will run fine on a genuine charger but after about 2 mins of unplugging the charger the machine will slow down with 100% cpu usage System detects and charges the battery also info comes up in the about>more info It passes EFI asd...

is 50ohms ok? i measured another board and it was at 600ohms

yeah 5v_s5 is 0v i measured at c7273 p5vs3_entrip is 0v p3v3s5_entrip 0.7v edit: just measured c7273 again and now seem to be getting a fluctuating value 1.3-5v

All went well I replaced the entire section with FF and did a pram reset. Thank you

Liquid damaged dotted around the board C7526 & C7525 we're burnt to a crisp when I got it replaced them and it cleared the short on that rail Replaced ISL and ran a jumper from ISL pin28 to c7020. current sense resistors all measure ok. G3h 12.59v R7005 checks out L7260 600 ohms to gnd L7220...

injected 3v and c4696 was getting hot, replaced it and now it's up to a 50 ohm short to gnd. It does now boot though

R7005 ok L7220 600ohms to gnd L7260 0.7ohm to gnd removed L7260 pin1 is 3ohms to gnd pin2 67k pump in 5v and see what gets hot?

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Sorry title is wrong its a 820-00138-A ( 2015 15" retina) Boots to question mark folder then grey padlock when I boot to ALT From what I've gathered this is an EFI lock and I have looked at other peoples bin's before and after someone unlocked them and seem to be getting different results Some...

replaced ISL and current sensing resistors all measure good. Still same symptoms

liquid damage near u7200 and u3890 area g3h = 12.58v smc_bc_acok = 2.9-3.2v fluctuating fan is jerking like its trying to start

Reflowed twice to no joy, reballed and working great. Thanks

Heated up the gpu and it's now working fine. Is there no way to just bypass the discrete gpu?

Got a 2011 15" in which boots fine with its original ssd but once I use a external drive or put a different drive in the machine it just sits at the loading bar. It was put on the roof of a car and he just drove off. No liquid damage. I put it in our airing cupboard for an hour and it boots to...

Liquid damaged near smc, I think it needs reballing/replacing but want to make sure g3h measuring 12.25v