D800 update procedure topic

I don't feel like the minor update (which my phone didn't come with) is worth uninstalling TWRP and unrooting, so I'm just going to keep this for future reference. Right now I am on the stock ROM, but I'm rooted, have a few bloatware apps uninstalled, and have TWRP recovery installed.

If I wanted to go back 100% to unrooted, unmodified stock as easily as possible, what would I have to do?

Procedure to install custom rom to 8160 L topic

Personal downloaded this rom CyanogenMod 11.0 for the Samsung Galaxy Ace 2 (GT-I8160L )
Brought to you by TeamCanjica, now my doubt is for me to install the ace 2 L I8160 which procedure? need to do anything else, because my ace 2 is the Brazil and uses the 8160 L rom, I'm afraid to do it anyway and give problems and are unable to recover the device over.