how to root and indtall twrp Xiaomi Mi 4i using MIUI v 7.2.3.0

hey guys...I just update my mi 4i to v 7.2.3.0 (stable). As kingroot can not root this version then is there any process to root and install twrp on this version without pc?plz dont tell that see the thread http://ift.tt/1VZxKN3 that thread is bull**** as he said i have to givr root permission to flashify app.If i am unrooted then how i give root permission to any app? I am using indian version of xiaomi mi 4i.

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