Small rectangular magnet: not in procedure
I followed these instructions to replace hard drive in an iBook G4 Late 2004. Upon finishing, I found a small, stray magnet about 3/4" x 1/4" on the work surface. I know it must have come from the interior of the iBook but it's not mentioned anywhere.
IBook now starts to power on, but fails to boot, even from an external FireWire drive with a copy of the original disk.