| Remove the screw partially securing the PMU in place. |
| Pry up the round end of the small metal spring using either your fingers or a small screwdriver. |
| Pry up the other end of the spring, and pull it down towards you. |
| Remove the keyboard locking mechanism. |
| Flip up the PMU, and disconnect the PRAM battery connector from it. |
| Insert a flat blade underneath the PRAM battery, apply sufficient pressure with the index finger, and remove it. Note that this is an optional step. |
| Carefully disconnect the cables connecting to the PMU using preferably just your fingers, or possible a flat edge for the bigger connections. |
| The PMU can now be removed. |
