Use your fingers to push both battery release tabs away from the battery, and lift the battery out of the computer. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3386 Use your fingers to push both battery release tabs away from the battery, and lift the battery out of the computer. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3386 Remove the three identical 2mm Phillips screws from the memory door. Lift the memory door up enough to grip it and slide it toward you, pulling it away from the casing. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3395 Remove the three identical 2mm Phillips screws from the memory door. Lift the memory door up enough to grip it and slide it toward you, pulling it away from the casing. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3395 Remove the two 2.8 mm Phillips screws in the battery compartment near the latch. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3500 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/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3620 Remove the four 3.2 mm Phillips screws on the port side of the computer. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3501 Rotate the computer 90 degrees and remove the two 3.2 mm Phillips screws from the rear of the computer. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3621 Rotate the computer 90 degrees again and remove the four 3.2 mm Phillips screws from the side of the computer. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3622 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 four plastic clips above the DVD slot, and another above and to the left of the IR sensor. These clips can be very difficult to disengage without prying. They can also be difficult to re-engage during reassembly. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3502 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 four plastic clips above the DVD slot, and another above and to the left of the IR sensor. These clips can be very difficult to disengage without prying. They can also be difficult to re-engage during reassembly. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3502 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 four plastic clips above the DVD slot, and another above and to the left of the IR sensor. These clips can be very difficult to disengage without prying. They can also be difficult to re-engage during reassembly. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3502 Disconnect the trackpad and keyboard ribbon cable from the logic board, removing tape as necessary. Note: It is possible to replace the hard drive without disconnecting the keyboard from the chassis, but it will need to be held upright to keep it out of the way, while still allowing you both hands to work on the drive removal. Be careful when removing the keyboard-trackpad ribbon cable to ensure that the rear of the upper case is disengaged from the area near the hinge. It is easy to accidentally bend the screw receivers on either side of the keyboard. Remove the upper case. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3503 Disconnect the trackpad and keyboard ribbon cable from the logic board, removing tape as necessary. Note: It is possible to replace the hard drive without disconnecting the keyboard from the chassis, but it will need to be held upright to keep it out of the way, while still allowing you both hands to work on the drive removal. Be careful when removing the keyboard-trackpad ribbon cable to ensure that the rear of the upper case is disengaged from the area near the hinge. It is easy to accidentally bend the screw receivers on either side of the keyboard. Remove the upper case. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3503 Disconnect the orange hard drive ribbon cable from the logic board. Remove tape as necessary and use a spudger (or carefully push a credit card under the tape) to carefully loosen the adhesive securing the sleep light and IR sensor connectors to the top of the hard drive. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3527 Disconnect the orange hard drive ribbon cable from the logic board. Remove tape as necessary and use a spudger (or carefully push a credit card under the tape) to carefully loosen the adhesive securing the sleep light and IR sensor connectors to the top of the hard drive. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3527 Remove the two 8.2 mm T6 Torx screws securing the hard drive retaining bracket to the lower case. Lift the hard drive retaining bracket up and out of the computer. Lift up the hard drive with one hand and use your other hand to disconnect the hard drive cable. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3528 Remove the two 8.2 mm T6 Torx screws securing the hard drive retaining bracket to the lower case. Lift the hard drive retaining bracket up and out of the computer. Lift up the hard drive with one hand and use your other hand to disconnect the hard drive cable. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3528 Remove the two 8.2 mm T6 Torx screws securing the hard drive retaining bracket to the lower case. Lift the hard drive retaining bracket up and out of the computer. Lift up the hard drive with one hand and use your other hand to disconnect the hard drive cable. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3528 Remove the two silver T6 6 mm Torx screws from the left side of the hard drive. You'll need to transfer these screws to your new hard drive if you're changing drives. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3535 Remove the two black T6 Torx screws and white rubber bumpers from the right side of the hard drive. You'll need to transfer these screws and bumpers to your new hard drive if you're changing drives. If you are installing a new hard drive, we have an OS X install guide to get you up and running. /Guide/MacBook-Pro-15-Inch-Core-2-Duo-Models-A1226-and-A1260-Hard-Drive-Replacement/670/all#s3624