Use your fingers to push both battery release tabs away from the battery, and lift the battery out of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2045 Remove the three identical Phillips screws from the memory door. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2046 Lift the memory door up enough to get a grip on it, and slide it toward you, pulling it away from the casing. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2047 Remove the two 2.8 mm Phillips screws in the battery compartment near the latch. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2050 Remove the following 6 screws: Two 10 mm T6 Torx screws on either side of the RAM slot. Four 14.5 mm Phillips screws along the hinge. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2051 Remove the four 3.2 mm Phillips screws on the port side of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2052 Rotate the computer 90 degrees and remove the two 3.2 mm Phillips screws from the rear of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2053 Rotate the computer 90 degrees again and remove the four 3.2 mm Phillips screws from the side of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2054 Do not yank the upper case off quickly. The case is attached to the logic board via a ribbon cable. Lift up at the rear of the case and work your fingers along the sides, freeing the case as you go. Once you have freed the sides, you may need to rock the case up and down to free the front of the upper case (there are some hidden plastic clips that need to be clicked off). /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2055 Disconnect the trackpad and keyboard ribbon cable from the logic board, removing tape as necessary. Remove the upper case. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2056 Disconnect the orange SuperDrive ribbon cable from the logic board, removing tape as necessary. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2107 Remove the following 4 screws: Two 3.3 mm silver Phillips screws on either side of the SuperDrive. One 4.7 mm silver T6 Torx screw from the top left corner of the drive One 6.2 mm black Phillips screw at the top right corner of the drive. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2108 Lift the optical drive up and out of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2109 Disconnect the hard drive and ExpressCard connectors from the left side of the logic board. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2128 Disconnect the iSight and display data cables from the logic board by sliding the cables out of their connectors, removing tape as necessary. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2129 Disconnect the eight indicated connectors by placing a spudger beneath each cable and lifting up. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2130 Remove the silver T6 Torx screw securing the ground loop in the display data cable to the casing. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2131 Remove the single T6 Torx screw securing the clear plastic shield over the right ambient light sensor. Lift the clear plastic shield off the right ambient light sensor. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2132 Peel up the orange Kapton tape securing the right thermal sensor cable to the logic board. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2133 Remove the following 15 screws: One 4.4 mm black Phillips screw to the right of the ram slot. Eight 4.7 mm silver T6 Torx screws securing the logic board to the lower case. One 6.2 mm black T6 Torx screw on the right side of the left fan. Five 9.4 mm silver T6 Torx screws securing the left and right fans. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2134 Hold the logic board down with one hand and use your other hand to lift the left fan up from its housing. There is a piece of black tape securing the fan to the heat sink. Carefully peel this tape up from the heat sink as you lift the fan up. Place the fan above the Airport card. It is not necessary to remove the fan from the computer entirely. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2135 Lift the right fan up and carefully peel up the tape securing the fan to the heat sink as you go. Remove the right fan from the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2136 Lift up the left side of the logic board and disconnect the gray and black power cable from the bottom of the board. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2137 Grasp the logic board at the left side and at the thin section, and rotate the logic board out of the lower case. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2138 Peel back the orange Kapton tape covering the left thermal sensor. Use a spudger to pry the left thermal sensor off the heat sink. /Guide/Installing-MacBook-Pro-15-Inch-Core-2-Duo-Model-A1211-Left-Thermal-Sensor/475/all#s2196