Before installing the USB Loader I want to upgrade to 4.0 using waninkoko's 4.0 updater, now my question is: if I haven't installed any Cios ever and i'm still on 3.3 can I install the new rev9 cios to upgrade to 4.0 so I can still use homebrew and later install the USB loader? ( I assume that if I already Intalled the rev9 Cios I don't have to install it again when I'm in 4.0 so all I have to do is is put the USB loader on my Sd card).
So what I want to do is:
1. Install the rev9 Cios
2. Upgrade to 4.0 (with all the useful things from 3.2,3.3.
3. Install the USB Loader
4.ENjoy
Is that procedure okay?