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thx nik1981

2informaticos - when keyboard is connected 3.42V (same when disconnected) JohnB8812 - damn? missed checking trackpad. As can be seen on the pictures ? there is some corrosion. Cleaned it up with alcohol and Qtip ? now macbook starts and seems to be working. At this moment don't have password to...

Hi. 820-00165-a -- no power Found out laptop powers On with keyboard detached (with picture on screen). With keyboard pluged in ? won?t start(i.e. no fan spin). (These are things I?ve checked, mentioned in other threads) U4810 has no corrosion and pin 8 outputs 3.3V PP5V_S4RS3 is present Bad...

iPhone 6 water damage. Doesn?t turn On, doesn?t get warm. Most visible ?damage? is around U1601(audio amplifier). As far as I can tel PP_BAT_VCC is Not short to ground. When Logic Board connected to DC Power supply (set to 4V 2A) draws 0A. No jumps, just steady 0A.

arnonabuurs - thank you for the tip. Noted.

You might not remember beginning of the thread (as you help more then just me). There are two identical macbooks. Problem started in #1. #2 I just happen to have with broken screen. So after testing lines (with your help) I suspect the culprit to be battery #1 (which you told me NOT to connect...

with battery and charger plugged in - voltage on SCL/SDA is same - 3.42V / 3.41V

SCL/SDA I've measured through R5380/R5381 - 3.42V diod mode - 0.340 (red on Ground) PPBUS_G3H from several places on motherboard still 12.4V on one multimeter and 12.6V on another in diod mode - 0.151

Hi, I?ll be as brief as possible. (I am beginner) 820-4924 (macbook pro early 2015) Problem ? no image. There was an image for a split second when opened the Lid ? then black. Restarting, pulling battery ? doesn?t help. Later tried to shine flashlight through the Logo, but was too late. By...