You carefully pull them off to expose the top side of the double stick tape surface to hold your ribbon cables going to the main logic board and the bottom tape holds the lower board in place.
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The 3M logo’ed part is also a tape which holds your battery after you’ve put the back on.
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The 3M logo’ed part is also a tape which holds your battery after you’ve put the back cover back on.
The transparent blue are tape covers!
You carefully pull them off to expose the top side of the double stick tape surface to hold your ribbon cables going to the main logic board and the bottom tape holds the lower board in place.
The 3M logo’ed part is also a tape which holds your battery after you’ve put the back on.