Hi, my macbook pro has a problem with the charging, i've already change the DC-In Board, because i thought that was the main problem and it works fine, the battery works perfect (i tested in another mac) the charger works fine (the same than the battery) and the problem is still there. I went to the mac store (México) and they told me "we have to change the motherboard and it will cost $14000 mxn (about $1100 dls)" I don't have the money to do that. do i have really change the the motherboard? there is no other clue to fix this? Thanks for the tutorial it's very well explained.