MacBook Pro 13" Unibody Mid 2012 Trackpad Replacement

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

Use your fingers to pry the lower case away from the body of the MacBook near the vent.

Remove the lower case.

Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.

Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.

Remove the following two screws:

One 5.6 mm Tri-point screw

One 13 mm Tri-point screw

Carefully peel the battery warning label off the upper case between the battery and the optical drive.

Use the attached plastic pull tab to remove the battery from the upper case.

Charge it to 100%, and then keep charging it for at least 2 more hours. Next, unplug and use it normally to drain the battery. When you see the low battery warning, save your work, and keep your laptop on until it goes to sleep due to low battery. Wait at least 5 hours, then charge your laptop uninterrupted to 100%.

If you notice any unusual behavior or problems after installing your new battery, you may need to reset your MacBook's SMC.

Use the flat end of a spudger to carefully pry the trackpad connector up from its socket on the logic board.

Open your MacBook Pro and set it on a table as shown.

While holding the edge of the trackpad closest to the logic board with one hand, remove the four 1.2 mm Phillips screws highlighted in red.

If necessary, carefully dislodge the edge of the trackpad closest to the keyboard from its recess in the upper case by pushing it away from the brackets attached to the upper case.

Carefully push the trackpad connector and cable down through the slot cut into the upper case.

It may be necessary to use a spudger to help get the trackpad connector past the edge of the logic board.

Once the cable has been completely pulled through its slot in the upper case, pull the trackpad away from the outer edge of the upper case and remove it from the machine.

To remove the flex cable from the old trackpad, first flip open the latch on the ZIF connector, opposite the cable. Then, apply a little heat from a hair dryer or iOpener to soften the adhesive securing the cable to the trackpad, and carefully peel off and remove the cable.

Next, reinstall the four 1.2 mm Phillips screws along the inner edge of the trackpad.

Check the alignment of the trackpad on the keyboard side of the upper case. Once you have centered the trackpad in the upper case, tighten the four Phillips screws all the way.