820-2879 won't start

Bohmmen

New member
This board first had a problem with power dropping on PPBUS_G3H, found a bad trace on current sensing so i soldered a wire between R7050 and R7052 to fix the power dropping.
PPBUS_G3H is 12.59 volt
I have green light.
There has been liquid on the board. Some red points on top of the board around the U7600 area and around the SMC.

What can I check before I call it dead?
 
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