I was trying to learn on how to inject my ps3 4.81 ofw and I made a few mistakes on the way, right now its on demo mode 4.81, I tried to get out of demomode by typing in the code 7897 and it works but after I restart the ps3 it goes back to demo…

How to permanently remove demo mode 4.81 in PS3

Source: PS4 News – How to permanently remove demo mode 4.81 in PS3