Would you look at this teardown and help identify what has happened. http://www.ifixit.com/Guide/Repair/Installing-iBook-G4-12-Inch-1-33-GHz-AirPort-Bluetooth-Board/707/1
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There should be no soldering needed but if it's what I'm thinking of, it shouyld have been secured by screws. Has someone else been in this computer before?