BTW you can swap the hdd with another one before you install the PUP vis FSM You can also create a RAW backup of the hdd using windows, you'll have to restore it after you install the PUP via FSM
You'll not lose any data in this way!
Remove the bluray if you have one, also the PUP path must be exatly X:\PS3\PS3UPDAT.PUP <--- all capital letters
if you are on 3.56- you can install my firmware directly, if you are on 3.55+ you've do downgrade to 3.55 first
You should write you didn't brick following my tutorial