Lifting from the side nearest the battery, rotate the logic board toward the top of the MacBook Pro.

You may need to slide the logic board a few millimeters to the left in order to get clearance for the ports along the right edge of the board.

Using the flat end of a spudger, carefully push the MagSafe 2 connector out of its socket on the bottom of the logic board.

Disconnecting the MagSafe 2 connector can be difficult. If you are only removing the logic board to temporarily get it out of the way, such as for a battery replacement, you may find it easier to simply remove the two 2.5 mm T5 Torx screws securing the MagSafe DC-In board, and then remove the logic board and MagSafe board together.