Yeah you can use Waninkoko's CFW, but it has a HIGH chance of bricking certain consoles. If you install Kmeaw's it's alot safer, sure you have to install a package but on the bright side you are safe...
If you want to try Waninkoko's CFW i suggest you read a post somewhere on the internet, ill find you one hold on...
Heres one on from Ps3-hacks.com:
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