(adsbygoogle = window.adsbygoogle || []).push({}); i was so stupid to install psn enabler/disabler package for 3.55 on my ps3 4.21 cfw. and then i get red screen when i start up my ps3 any help ?

Re-install the 4.21 cfw from the recovery menu. I've had over 20 red screens; it's nothing serious.