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What screwdriver size is needed for MacBook Pro mid 2012 back cover?

According to iFixit's teardown the Philips #00 should be used for the "lower case". Is the lower case a synonym for the "back cover"?

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up vote 5 down vote accepted


The back cover is secured with Philips #00 screws.

Note that is says:

The lower case is secured by ten Phillips #00 screws.

You can see the ten screws on the back cover:

  • four each at the top/bottom
  • one each on the left/right
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The screws are pentalobes and should not be mixed by Philips or torx. If you usa a torx screwdriver you will damage the screws and in worst case you'll make them flat and you will not be able to unscrew them.

More info on pentalobes:

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No, the screws on the MacBook Pro mid 2012 back cover is Phillips #00 screws. I don't know about later models, I know about this one :) – Emil Rasmussen Aug 29 '13 at 11:49

Its a pentalobe on the Mid 2012 Macbook Pro retina. Just purchased Torx and Phillips screwdriver sets based on how to's. Neither phillips 00 or Torx T6 work. Where to find the Pentalobe set next. I just want to upgrade the ram not open a repair shop.

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