reset the SMC works but you need to follow this and to do all the steps in the way i describe (for macbook pro with removable battery):
1 - Remove the battery with magsafe connected
2 - Remove Magsafe
3 - Hold start button for at least 5 seconds
4 - plugged Magsafe connector
5 - plugged the battery
The light change green to red. Wait 10 minutes and the computer start !
See ya