Slide the opening pick up both sides of the device in the small space between the midframe and the rear case to release the clips holding it in place.

Note that the clips are not released by sliding through them, but rather the inward pressure the opening pick creates as it enters the gap around them.

If the clasps fail to come undone, try pushing the edge you're working on inward with your hand, or using a thicker tool like a spudger.

Do not attempt to remove the midframe yet! There is still a fragile ribbon cable underneath connecting the earpiece speaker to the motherboard.