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I found the problem, Pin 1 and 3 have short circuit. Multiplexor U9850 was faulty. Removed it and Macbook booted up on external monitor.
Thank you so much for your help! :)
Hi, I have the following case:
This Macbook got spilled over the right charging ports with coffee. I noticed signs of coffee around the connector of the LCD display.
After thorough cleaning, I noticed that coil L8504 is burnt.
Voltage is stuck at 5V, current is going up to 53mA and then drops...