phone won't boot

[tesc11]

successfuly installed cyanogen 10.1 on my galaxy si9003. the new version was no w 4.2.2 up from gingerbread 2.3.6. in the recovery mode i deleted most backups. When i rebooted my phone it only show the samsung galaxy start up screen and it won't go beyond that. Download mode is available when i press the 3 button combo. i tried to flash it using odin but it is not working. how do i fix it?

thanks