My logic board is different [ I've also experienced dead keyboard ].
https://mega.co.nz/#!dFcQCKoa!cWsDGQ90QwuZcNbyAb3AcnM8xqgkmrPZu9AZmQOy2E4
On my board, these pins was covered with protective insulant, so I have to scratch it.
But it didn't start. I have to reset also SMC ( system managment console )
'''Resetting the System Management Controller (SMC)'''
If bottom case is removed,you can alternately reset SMC by disconnecting both power adapter and main battery, and holding down power button for 5 seconds.