Can't remove Half-root caused by KingoRoot
Answer after a long time but this must work as i have checked...
If you have a pc then you must download the huawei pc suite(HiSuite)from its website(huawei)and do sw update of your smartphone bu usb conn. as manytimes it will do the works according to reviews i listened.
Another method is to find the root files from using ES file explorer and you have to track those files by browsing to system files which is written on kingoroot website.Next step is to delete those files but be careful as this requires expertise.
There may be another method as i am not an expert till now  ;)