if you spoofed to 4.50 from 4.XX or what ever you will need to reinstall your cfw.
MAKE SURE YOU HAVE:
NO DISK IN PS3
AND INSTALL QA FLAG ONCE ON REBUG 4.46 OR WHICH ON EVER
once youve dont that you will need to:
1) download rogero 3.55 RSOD, put it on usb -PS3-UPDATE- and rename it to PS3UPDAT and install it on ps3.
2) next download 3.55 OFW, put it on usb -PS3-UPDATE- and rename it to PS3UPDAT and install it on ps3.
3) next download 3.55 rebug REX CFW, put it on usb -PS3-UPDATE- and rename it to PS3UPDAT and install it on ps3.
4) downloadrebug tool box and install it on ps3
5) next download 4.XX (Example 4.46) REX rebug CFW, put it on usb -PS3-UPDATE- and rename it to PS3UPDAT and install it on ps3.
6) Download and install QA FLAG, RUN IT ONCE DOWNLOAD IT AND IT SHOULD RESTART/BOOT YOUR PS3 (FORGOT WHICH ONE)
7) you have eid and nor/nand dump in rebug toolbox (WATCH IT ON YOUTUBE)
FROM THERE YOU HAVE TO ASK MY FRIEND TO HELP YOU IF SO PLEASE INBOX ME YOUR SKYPE
HOPE THIS HELPED YOU M8