Step 34 — Top Shield
Remove the following 15 screws:
Fourteen 3 mm Phillips.
One 5.5 mm Phillips in the upper left corner.
Step 35
Lift the top shield up from the right side, minding the upper left corner, which may catch on the metal framework.
Step 36 — Modem
Due to variations between iBook G4 models, your modem may look slightly different from the picture. All of the following steps apply to either model.
Remove the two Phillips screws at the corners of the modem.