FIx phone stucked on apple logo

http://www.ihackintosh.com/2009/10/iphone-stuck-on-apple-logo-after-installing-an-app-from-cydia/

http://ipod.about.com/od/iphonetroubleshooting/qt/reset_iphone.htm

And after this continue pressing home botton for recovery mode

or try recboot

iphone 4g

http://www.addictivetips.com/mobile/fix-iphone-4g-recovery-mode-loop-windows-mac-linux/

http://annunci.ebay.it/annunci/cellulari-e-accessori/torino-annunci-collegno/iphone-4-16gb-brickato/8017791

Ubuntu for old computers

http://www.u-lite.org/

BOOT FLOPPY THE REAL ONE HOPEFULLY!

http://www.plop.at/en/bootmanager.html#runflp

Boot from USB by Floppy

http://www.weethet.nl/english/hardware_bootfromusbstick.php