First of all, Why do you want to unroot it ??

 

That is not a reason to Unroot, first we need info on your phone, are you sure it is rooted, what HBoot are you on, what carrier are you on, if your phone was rooted, who rooted it, What Rom are you on, there is no need to Unroot to get the updates you want, and how do you know you need updates. Maybe you have different issues, give us as much info ans you can, then we will proceed from there

 

Well I still would not take the update, as there is a good chance it will unroot your phone and who knows what will happen. Go into Settings/About phone, Software information, that will tell us what Rom you are on, report back

 

OK, from what I can see is this, first you want to update, but you don't know what the update is, lol second, my guess is somewhere you did update and that is why your phone is messed up, because it is on the new base, so you are on a Stock rooted Base Rom right now, did you call the person that rooted your phone, when was it rooted, if it has been a while and you are on the new base then somewhere along the line your phone got updated and that is most likely why you are having issues. Are you on Sprint ??

If all the above is correct and you choose to want to go back to a full original stock, then you will have to run the RUU again, if that is the case and that is exactly what you want to do, then I will guide you to the proper post to do so. But before we do this, I would suggest simply trying to do a Factory reset and see where that takes you, but I would strongly suggest you make a Nandroid backup first incase.

 

The reason for the factory reset was to see if that would resolve your issues without unrooting, now if you still want to unroot, then I will give you a thread of a staff member that just unrooted if you want/