remove jailbreak

I remembered that I have an account with games and I wanted to finish them and get platinum. Can I somehow remove hen completely so that I don't get banned? (there is no money for the second ps3)

Hello! I really need your help :) I bought jailbroken PS4 a year ago. Now I want to remove jailbreak and be able to buy and play games online (I don't want to buy a second PS4). My questions: - Is it possible to remove jailbreak? And how to do that correctly? - How can I check if my console is...