Boot sequence is a mortal kombat character isnt that better than someone elses name lol, Rogero 4.30 1.03 works well with all games yet has the whole demo mode when trying to use certain services. This firmware (Ermac works. Playstation Network works and all, the xmb is a bit faster, all games work. And psn so I think its pretty great.
Steps are pretty simple if you are on higher firmware downgrade, if not just go into recovery mode by holding down the power button till ps3 turns on then off, then press and hold power till you hear 2 beeps, let go and you will be asked to plug in controller do so and select update, have this firmware on a usb formatted to fat 32 and named PS3UPDAT.PUP and in folder structure PS3/UPDATE/
Follow regular update. Update multiman and all as well. No issues You are good to go