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Have a macbook air 820-00165 with intermittent power issues. pin 2 of q7010 getting power. tried replacing q7010 and same result. Is there any negative effects of making a solder blob of pin 2 and 4?

No signs of liquid damage. usb ports have power but wont detect a usb mouse,keyboard or drive. power button works but the rest of the keyboard and trackpad dont work. pp3v42 is present on pin 19. the computer buts to internal drive but no user input devices work so further testing isnt...

fan spins for a second then shuts off corrosion around u7400 area mostly between u7400 and c7400 tried replacing u7400 with a known good. no change. all_sys_pwrgd is 0v r8168 is 99oms noticed that if r8168 is removed then all_sys_pwrgd is 3.3v and fan stays on still no chime or image on...

liquid damage along the back edge of the motherboard. computer powers on but wont boot to the os. progress bar reaches 100% and it will just hang. some components broke of when i tried to clean the corrosion. r1690,1638 and c3285. cleaning ME reign medusa gave me an error. also got errors...

computers history is unknown but. no signs of liquid damage anywhere. cpu vcore is unstable will alternate between 1.7 and 3.8. sometimes it will dip to like 0.1 mV or 0v. most of the time the computer wont start and the cpu vcore voltage will just alternate. sometimes i get no fan spin...