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download any 4.5o cfw (less risk of getting ban on a new cfw(4.50) ) so yeah, just update through the XMB and a cfw that I would recommend in Rogero 4.50. Here is a link for it: You must login or register to view this content.
Disable any spoofers you got install in you ps3 now before updating.
also the risks of getting ban on a cfw online and really really high

Can I upgrade to 4.50 cfw from my 4.30.2 cfw