How to root zte rapido lte?


AC Question

I have a ZTE Rapido Lte, Zte Z932l, Straighttalk phone. I tried almost all root apps & it won't root at all. I've tried KingoRoot on PC version, it told me it was rooted on my computer and too unplug my phone and that superuser would automatically install, it did but it said there was no su binary found or updated & superuser cant install it & that is a problem. I really want my phone rooted can you please help.