Not sure why you are replying to a several years old thread but the method mentioned here is very outdated. Iirc starting with 8.0.0 or 9.0.0 you can no longer generate a master key without device id that can only be retrieved by hacking the console. If you can run cfw then there's a homebrew to remove parental control.
Caller -"Everytime I start a Pc game on my S24, playing on a external monitor, someone calls or texts me, n it kicks me out of the game." Customer Support - Click (hangs up)
I found it funny cause many many years ago, had a roommate in college that did this same dumbass branding of the school logo, but it didn't look anything like it after it healed. Just looked like a birthmark.