Remove that USB stick (drive, etc.). And disconnect all other network cables, etc.
Attempt to boot holding down shift key + command key + the p and r keys (all together).
Release the four keys after 3 chimes (bongs, etc.). This = zapping the PRAM.
If you still have the flashing icon afterwards / and no boot, then…
Hold down the “click” button pad (green dot above) …upon yet another attempted restart to eject the CD tray.
Then place your original G3 iBook OS installer disc in the tray and close it. Hopefully the question mark
will then vanish and the machine will boot from the installer CD. THEN you can run Disk First Aid
(from Applications / Utilities on that installer disc) to check your HD and possibly repair or recover it.
If not, then it may be time to reinstall your OS to the HD - if it will allow this.
No original G3 iBook installer disc?
Check here for downloadable “others”:
http://macos9lives.com/smforum/index.php/board,62.0.htmlOr more specifically… one of these two:
http://macos9lives.com/smforum/index.php/topic,3176.0.htmlhttp://macos9lives.com/smforum/index.php/topic,3177.0.htmlGood luck.