1. Download and Sony's official 3.55 firmware. http://tinyurl.com/5ukomu5
2. Then put it onto a like this X:/PS3/UPDATE/PS3UPDAT.PUP (X being the drive letter of your usb)
3.Insert usb into ps3 click on System update and click storage device.
4.Click ok, read the nice message if you want to.
5.Then download Waninkoko's Custom firmware 3.55. http://tinyurl.com/4z7g98a
6.Rename the file PS3UPDAT.PUP if necessary
7.Repeat steps 2 -4
8.Check your games category for Install Package Files option. If you see it, you have a hacked ps3!