Hello, I just got a used Vita with 3.6 on it and Henkaku already installed. It has the previous owner's PSN info on it. I'd like my own so I can remote play my PS4. What steps do I need to take to remove his account and ensure I stay on 3.60? I have read that I need to restore the Vita in Safe mode, but will this restore, then allow me to log in to my account, without updating? I do have a PS3 and a PS4 with the same account on it, if one of those are needed. Also, I was considering purchasing a larger memory card. Should I put this in while restoring the Vita?