I was a happy user from Macbook Pro until yesterday. I used my mac until 1AM and turn off like usual. When I woke up and tried to turn it on again, it just didn't! I connected to the power and no lights showed up, nothing happened. It's like it is dead: no lights, no sound. I tried to connect to power with other battery charger from a friend of mine whi has a mac pro too and nothing happens either. I looked for assistance, but there is no Apple Care in my city anymore, the closest center is in 300kms away. I don't know what to do anymore, I know that I have to travel to a Center, but that costs money and I would like to know what can be happening, so I can at least imagine how much it will costs. I bought it in early 2012, so it is not in warrancy anymore.
Today I went again to the non official assistance and it just worked when the man charged it with his power adapter. I brought my mac home with the 30% battery and then I am charging like usual at home! Actually, I'm writting this reply from my Macbook right now, yeay!
However, just one "sequel" was left: my mac doesn't sleep anymore when I close it, it doesn't sleep automatically anymore. Well, if this is the wrost the happened I am pretty happy! hahaha
Conclusion: My macbook had some few areas with oxidation (corrosion) inside and it was hurting something there that made it not work anymore. Thank God, someone had opened, cleaned and now it is working completely fine - until now.
Thank you very much for all the help, guys!