Step 22
Slide a spudger beneath the black locking bar and pry up to rotate the bar 90 degrees (the bar is already rotated in the picture).
Step 23
Hold both the battery and the logic board assembly and slide both parts away from the orange antenna and out of the iPhone.
Step 24
There are two stacked circuit boards on the iPhone. The communcations board is on the top, and the logic board is located on the bottom.
To separate the boards, insert a spudger into the gap in the metal shielding as shown. Carefully pry with the spudger to loosen the connector.