My MBP i7 has suffered from liquid damage so the first thing I did was take it apart and dry whatever I could. I didn't wait a whole 72 hours but I went ahead and plugged it in to the adapter and powered on, and to my surprise everything worked, except the battery. Mac showed it as an X, and the battery meter button didnt light up at all. Also, the date/time is not saved any more along with wifi password. I took it to the genius bar today and upon inspection the man tells me that there is liquid EVERYWHERE and quotes me at $1200.00. To replace, EVERYTHING in the machine. I told him that everything on it works, except the battery. He SAID he tried to swap the battery out but it didn't make the difference. The point is, I have repaired an older MBP before so I know my around the hardware - I want to try to fix it myself and am hoping to be pointed in the right direction - The tech suggested that the logic board is completely shorted out - which is confusing when the computer works. Where can I find such a part if at all? - Does replacing the board mean i have to replace the cpu as well? Is that part of the board or seperate? - Is there any way I can test myself for whether the battery or the logic board if is in fact faulty? This way I know what parts to get. Thanks a lot for your time! Really appreciate any support!