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I have a liquid damaged 820-00164-a board here computer boots, does not charge battery. no green/orange light was not booting, cleaned up r7005 area where there was corrosion, also corrosion near f7140 f7140 showing .3ohms may be hardware resolution ppdcin_g3h_chgr 14.8v ppdcin no short to...

Thanks for the tip! I will get my Hands on a test battery. It should be left off, or just powered up once without the resistor?

Sorry if i am misunderstanding, I removed r8430 and it tests within spec. This issue was present on the previous hard drive, present on new ssd, also happens in boot menu, and asd. Would this computer be covered under the gpu recall program even though there are no graphics issues? or are you...

This board shows no obvious liquid damage. Hard drive was replaced by ssd. Running new os install. asd showed 2 errors Error 28 mux switching failed and battery not sealed customer previously replaced battery with generic battery, I do not have a genuine test battery for this macbook. Running...

820-3476-a very light blue corrosion around probe 106 area under the hard drive but does not look like direct water damge. PPBUS_G3H 12.56v PPBUS_S5_HS_COMPUTING 12.56v PPBUS_S5_HS_OTHER5V 12.56v PPBUS_S5_HS_OTHER3V3 12.56v PPDCIN_G3H_ISOL 16.16v PPDCIN_G3H 15.9v PP3V42_G3H 3.425v PPVRTC_G3H...

Shorting pins 10&11 has no effect on PPBUS_G3H. It also is slowly dropping in voltage until near zero, then green light re appears and board powers on. Replaced q7085 and the issue is unchanged.

I will check in the morning. Should I worry about the resistors that are measuring under spec also?

Possible liquid damage but has been ultrasonically cleaned before i took a look at it. works normally when running on the battery when the green light finally does come on it charges completely fine and operates normally. when battery is connected. battery has to be removed and let sit before...

Turns out that was the case, as soon as the board cooled down from heating in that area, the board stopped powering. i have a q7180 from a 820-2915 turns out it was the same component. Swapped, powers on battery is charging. This case is solved. Thank you guys so much! i had sat this...

I just pulled q7180 and inspected, there was a bit of corrosion between one of the pads on the chip and the board, i cleaned and reseated, and now it is working, is this possibly a case of heating a transistor making it temporarily work or is it possible that the corrosion was the culprit?

I do not have a donor board with the same q7180, but i can order the part. Resistance from pin 1 to ground is 68k 2.63v on gate of q7010

computer had liquid damage works completely fine on battery but will not power on with charger, will not charge battery I don't see any obvious corrosion points and have finished an ultrasonic on the machine. I am at a loss of what to check. I know the PP18V5_DCIN is very low but cant find...