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Client says it has not been dropped but who knows, right? Unfortunately, even in SMC bypass mode it does the sudden shutdown...

Thank you for clearing that up. Big coil L7520 seems to give a tiny voltage 0.02v at initial contact, but then drops to zero. Big coil L7130 is 12.50V. Measured PP3v3_s5 is 3.32v and _SUS is 0V Kind reminder, the Macbook is not steady. Sometimes it will not boot at all; other times it boots...

Removed F7040 and in L7030 voltage is 3.81V In diode mode: SDA 0.491v SCL 0.477v

So, Diode mode to ground at L7030 is 0.442V U7000 pins measures: pin 1 0.003V pin 2 16.34V pin 3 3.93V pin 9 0.028V pin 12 3.469V pin 13 3.437V Pin 15 0.047V Pin 19 5.03V Pin 20 5.03V How do I start in SMC bypass mode?

Hello, amber light on Magsafe connector OK. PPBUS_G3H 12.51V, pp3v42 3.39V. I don't know what the /SUS part in 3V3_S5/SUS is, can you explain? Also, I have no oscilloscope to check for pulses... is there any other way? Thank you

Hello guys, someone tried to change the battery on a 820-2936 MacBook with a fake one and now it does not start. I get a green light in the charger but PPBUS_G3H is 3.46V. On ILS chip U7000 I measure resistance 17/18 3.2Ohm and 27/28 is 20.4Ohm. What do I measure first?

Hello guys, I got a 820-4924 macbook that has no signs of liquid damage. The customer brought it because it was shutting down out of nowhere. What should I measure first? Thank you

So stupid, so simple... you are my savior. Thank you brunomotter! Case closed.

Hello guys, I hope someone can help me with this. A MacBook Pro 15" Touch Bar 2017 came in contact with honey! The whole right side was affected. I opened it, cleaned up the mess, ordered a new audio jack, a speaker and a right fan. I also noticed that the power button was erratic but at...