Why fast charging and private mode doesn't work

[AC Question]

Hello there
I am using samsung galaxy s6 edge. Today I update it to nougat... Nd after that my fast charging and private mode isn't working.. when I try to enable private mode it shows that private mode enable failed....

 

[B. Diddy]

Welcome to Android Central! Try wiping the cache partition: https://support.t-mobile.com/docs/DOC-21095

 

[rjack22]

Nougat is out for the S6? I haven't received it yet.