unroot

Hello, I have a galaxy s4 on 4.4.2 that I rooted using kingroot a while back. It is a US Cellular SCH-R970. Knox has not been tripped. Under device status it says the phone is custom. This means I cannot update to 5.0.1. My question is, how would I return the phone to official status without...

I've rooted my HTC One SV, but im trying to unroot it and i cant find the RUU for it anywhere. Can anyone help me out here? Also its the LTE T-Mobile version.