@dervishe is the brown stuff resin or flux?
@hakunamenta I don't think it's flux because it's dry. It is the only part of the board with this kind of brown / yellow smudges. (i take a larger picture)
@dervishe rosin based flux is very hard when dry. maybe its that? just trying to understand if the brown stuff is part of the problem or not.
@hakunamenta thanks for the advice, i will try to do that. :)
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