At the risk of getting a, "just google it" question, I really want to try the next step and get the Xperia Z as close to stock as possible. After looking at all the stuff that's running in the background that's been installed by Sony/Vodafone, I just want to nuke the whole thing and start fresh. Some questions:
1. As much as I want to jump straight into this, I want to know what's the steps to make sure that in the case of me messing everything up, I can restore the phone back to to "pre-rooted" days and pretend that I never tried out hacking it in the first place?
2. Out of all the things that Sony included, I really like their camera and I wish to keep it if I ever decide to install a vanilla custom rom. Is there a way to carry it over?
3. If Sony ever decides to update their firmware, will that affect anything to my hacked phone or will the OTA ignore me because I'm on a different firmware?