Help me UNROOT please

[miko30]

well as the title says, I root my p8lite ale l02 using kingroot, and replace kinguser to supersu, now seems that i cant fully unroot my phone using super su, there's a su file on xbin but i cant delete it, probably needing some new stock fw but cant find around here,. if there is any workaround to fully unroot my phone please help..

 

[ItalianWolf]

if you have stock recovery you can do a full local update with the same stock firmware: if you have B171 download fuill B171 and do a local update.
(Please read/search the forum, from this post http://xdaforums.com/showpost.php?p=65510265&postcount=22 )