How do i block text messages

I want to block text and calling me from text messager

You have to block the number, and doing that will block calls and texts.

See if the instructions in this link works.

Block calls ZTE ZMAX

Why not use LEO Privacy? It can block harassment calls, I used it for a long time, it really works well. At the same time, I think you will also find some other useful functions on your phone !
LEO Privacy Applock Boost Hide Android Apps on Google Play