hello. new member and first post. thanks for allowing me to become a member (admins). I acquired a late 2018 MacBook Air A1932 EMC 3184 with the previous owner acknowledging that "will not power on." Unfortunately that is all that is known to me at this point. Needless to say I accessed the logic board and detached completely from the MB to look for signs of water damage, i.e. corrosion, burnt/busted caps, resistors,etc. and I could not see anything obvious. So I reattatched the board and applied connections back and with the back cover still removed, plugged it in to the power and it still would not power on. I tried holding the power button/sensor for up to 60 seconds w/o power and before applying power as well as holding power whilst plugging in the power. Still no visual indication on the screen nor other things such as the fan spin up or the power on "chime." In this state, I looked the logic board over and noticed a single small flashing white led near the battery connection (I added images to this post - One is a out shot of the whole board with an arrow pointing to the LED and the Second is a close-up if the area where the LED is with arrow pointing to the location. The flashing doesn't appear to have a pattern - just on, off, on, off, on, off every second until I unplug the power adapter. If this is not the correct forum area, I ask the admin's to place it in the correct area. But my question is if anyone has any insight on what this flashing LED indicates. And, perhaps, provide opinions or references where I can continue my troubleshooting. Thanks in advance for any replies. Happy New Year!