Recently, i figured out that my Macbook Pro trackpad was less responsive than 3 years ago 
Then i searched Google and found the fix
I got this from www.gogeeks.tv because i didn't take any picture or video when i fix mine
It works on Unibody Macbook Pro/Macbook that have multi-touch trackpad
Here's the tool:
#00 Philips Screwdriver
Tri-Wing Screwdriver (Same one that Nintendo products use)
T6 Hex Screwdriver
Step by step:
[EDIT] I have resized those pictures
Here's a video how to do this
So, i have fixed the trackpad on my MBP, remember, i am not responsible for all damage that you caused after doing this
So please be careful.
Then i searched Google and found the fix
I got this from www.gogeeks.tv because i didn't take any picture or video when i fix mine
It works on Unibody Macbook Pro/Macbook that have multi-touch trackpad
Here's the tool:
#00 Philips Screwdriver
Tri-Wing Screwdriver (Same one that Nintendo products use)
T6 Hex Screwdriver
Step by step:
[EDIT] I have resized those pictures
Step 1: Unscrew the 10 screws with the #00 Philips screwdriver and remove the backplate (keep note that the 3 screws on the top-left are longer than the rest).
Step 2: Unscrew the two screws holding the battery down with the Tri-Wing Screwdriver.
Step 3: Unplug and remove the battery (can be difficult, but be careful not to rip the plug).
Step 4: Here you should see the bottom of the trackpad, on the trackpad you’ll notice a screw (circled below). All you need to do is SLIGHTLY tighten/loosen the screw (1/8th of a full rotation).
Step 5: Put your computer back together (reverse above directions) and test the trackpad, you may need to open the computer back up a few times to get your trackpad working perfectly, remember to only adjust the trackpad slightly at a time, the slightest rotation makes a HUGE difference.
Here's a video how to do this
So, i have fixed the trackpad on my MBP, remember, i am not responsible for all damage that you caused after doing this
So please be careful.
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