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Board 820-00165, 2017, 2,2 ghz, i7. Initial problem: fan spins about 15 sec and stops. Replaced U6100 from 820-00165, 2015, 8 gb donor board just to check if EFI could be the problem. Board turns on but of course never boots into osx. Then I cleaned ME region with Medusa 3 but the problem is...

820-01521 (Macbook air 2018) no sign of liquid spill. Customer said that it just shut off suddenly and wouldn't turn on again and that it was more and more warm with time before it died. Without battery connected it measures 5V and takes 0,40A for 2-3 seconds, then 0A and again 0,40A. With...

Hi, Came in with little bit corrosion on the upper side. Fan turns on for 1 sec, then turns on again for about 15 sec then turns again and it does't stop but no post. L7310/L7320 = 1,7V L7630=1V L7430=1,2V. Have tried another U6100 but all the same.

Hi, No sign of corrosion. 20V on both USB-C ports. 0,33-0,037A. Fan starts, but no chime, no activity on external USB or image on external display. L7210/L7220 0,9V which seems ok to me. Where to start?

Water damaged. Ok on external display but blank screen on internal lcd also on test lcd. PP5V_S0SW_LCD 0V. Any idea?

Hi, Came in with U7100 blown. Replaced it, Q7130, Q7135, Q7155 and R7105 (measured kohm instead of 20ohm) also. U7100 got warm so I replaced Inrush Limiter mosfets from a donor board (in this model there are 2 mosfets but in schematics it shows only one - Q7180). U7100 still gets warm. Measured...

Hi, Minor water damage. Replaced U5440. Otherwise everything seems ok. The problem is that it never loads osx, neither from internal ssd or external and the fans starts to speed up after 1 minute or so. Apples diagnostics comes with SMC error - PFM006. If it is sensor error how to find out which...

Hello, I hope to find help with this one. Water damaged, PPBUS_G3H had short, changed U7220 and U7420. The board turns on and everything seems ok apart from bunch of small squares on internal display. They come and go constantly. The funny thing is that, when the external monitor is connected...