How can I install an OTA update on a rooted phone?

[AC Question]

Hi! I own a S7 Edge and I'd like to do the OTA update even though I'm rooted. Since I've had nothing but iPhones before this android, I only know how to work properly with Cydia. Therefore, I'd like to ask for some explanations on how could I do it, because I honestly have no idea on what to do. Thanks.

 

[belodion]

You'd have to unroot first, otherwise the update will fail.

 

[berrap]

how could i unroot it? and will i lose my files either way?