I hope you did not install Official FW 430 . Defiantly check the MD5 of the PUP you have installed or think you have & go to Ps3DevWiki.com to check the ofw cex 430 Hash.. Installing apps on Rogero ,as in new homebrew need to be signed 360+ so if your trying anything for 355 apps ,they will error i believe on that CFW 425/430..
Also did you have a new game DISC in your drive ? Better check them few things. Either you installed OFW or your HomeBrew is not for 4xx.