It's so sad that Samsung hasn't added secure folder and knox related apps in m series...can anyone help to install secure folder in m30

give me a possible solution

hello friends... I'm unable to do video calls directly through dialpad since i upgraded my on nxt 64gb to nougat..so please provide me any method to make it work..

hi..since I rooted my Samsung onnxt I'm unable to use secure folder,despite of reinstalling official firmware of Samsung.....After googling I found my Knox has been tripped...Is there any method to run secure folder again???