Step 1 Unfasten the lower case. Tool used on this step: Magnetic Project Mat. $19.99. Before proceeding, unplug and power down your MacBook. Close the display and flip it upside-down. Remove the following eight screws securing the lower case: Two 1.8 mm P5 Pentalobe screws. Four 2.9 mm P5 Pentalobe screws.
The 12-inch Retina MacBook hit the shelves on April 10th, 2015. It utilized Intel's Broadwell Core M processors, boasting a low thermal design power (TDP) of around 4.5 Watt, which allowed for the fanless design and a much smaller logic board compared to previous MacBook models. It resembled the MacBook Air in appearance but was more fBVBuj.