Step 1 — Lower Case
Remove the following ten screws:
Three 14.4 mm Phillips #00 screws
Three 3.5 mm Phillips #00 screws
Four 3.5 mm shouldered Phillips #00 screws
Step 2
Use your fingers to pry the lower case away from the body of the MacBook near the vent.
Remove the lower case.
Step 3 — Battery Connection
Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.
It is useful to pry upward on both short sides of the connector to "walk" it out of its socket. Be careful with the corners of the connectors, they can be easily broken off.
Step 4
Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.
Step 5 — Optical Drive
Use the flat end of a spudger to pry the AirPort/Bluetooth ribbon cable connector up from its socket on the logic board.
Step 6
Carefully pull the camera cable out of its socket on the logic board.
Though not recommended by iFixit staff, some users opt to omit this step completely. For information on this, see the step comments.
Pull the cable parallel to the face of the logic board. Pulling it upward may damage the logic board or the cable itself.
Step 7
Carefully move the AirPort/Bluetooth ribbon cable out of the way as you peel the camera cable off the adhesive securing it to the subwoofer and the AirPort/Bluetooth bracket.
De-route the camera cable out from under the retaining finger molded into the AirPort/Bluetooth bracket.
Step 8
Use the tip of a spudger to pry the antenna connector closest to the logic board up from its socket on the AirPort/Bluetooth board.
De-route the antenna cable from under the finger molded into the AirPort/Bluetooth bracket.
Step 9
Remove the following five screws:
Two 10.3 mm Phillips screws
Two 3.1 mm Phillips screws
One 5 mm Phillips screw
Step 10
Pull the AirPort/Bluetooth assembly and the Subwoofer upward near the center of the side of the optical drive until they clear each other.
Move the AirPort/Bluetooth assembly and the subwoofer away from the top of the optical drive.
Step 11
Pull the right speaker/subwoofer cable out from under the retaining finger near the side of the optical drive.
Pull the right speaker/subwoofer cable upward to disconnect it from the logic board.
Step 12
Use the flat end of a spudger to pry the hard drive cable connector up from its socket on the logic board.
Bend the hard drive cable away from the optical drive.
Step 13
Use the flat end of a spudger to pry the optical drive connector up from its socket on the logic board.
Step 14
Remove the three 2.7 mm Phillips screws securing the optical drive to the upper case.
Step 15
Pull the optical drive upward from its edge closest to the display and remove it from the upper case.
Step 16 — Optical Drive
Pull the optical drive cable away from the optical drive.
Be sure to pull on the connector, not the cable itself.
Remove the two black Phillips #0 screws securing the small metal mounting bracket. Transfer this bracket to your new optical drive or hard drive enclosure.
Step 17 — Dual Hard Drive
Remove the plastic spacer from the optical bay hard drive enclosure by pressing in on one of the clips on either side and lifting it up and out of the enclosure.
Step 18
Make sure that the hard drive connectors are facing down before placing it into the enclosure.
Gently place the hard drive into the enclosure's hard drive slot.
While firmly holding the enclosure in place with one hand, use your other hand to press the hard drive into the enclosure connectors.
Step 19
Once the hard drive is snug, reinsert the plastic spacer while holding the hard drive against the bottom of the enclosure.
Step 20
Use two Phillips #1 screws to secure the drive to its enclosure.
Step 21
Attach the optical drive bracket to the new enclosure with two Phillips #0 screws.
Reconnect any cables you have removed from the original optical drive onto the optical bay enclosure.
Step 22
Don't ditch that drive! You can still use your optical drive externally with the help of our SATA Optical Drive USB Cable.
Align the cable's SATA connector with the drive's port and plug in securely.
Plug the USB connector into your laptop and your optical drive is ready for use. http://www.trainingintambaram.in/java-training-in-chennai.html