root without loose fingerprint and private mode

hello
i search to root my sm920f in 5.1.1 lolipop

but i dont want to loose the fingerprint scanner and the private mode

i use it

any custom kernel do this ???

Craig's Private Call Blocker

Take a look at "Craig's Private Call Dropper!"

I don't have access to a non rooted phone and need to know if root is required (android studio claims it is! Thanks)

Anyway, how it works.... install step 2 run it! (Now exit)

3. Relax, sit back... all private numbers will be blocked!

https://play.google.com/store/apps/d...gs.calldropper

But i'm unsure if root's even needed as no SU dialog pops up!.....

Private mode after root

Hey all has anyone tried private mode after they have rooted and flashed the permissive kernel?

Also what services are required to be running so that it will work?

When I try to enable it I get a message "Failed to enable private mode. Please try again."

I have disabled all the Knox apps and services from starting.

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