Can't install APK

[AC Question]

Why I can't install apk from Samsung electronic to my Samsung galaxy j3 2016 global version after firmware update (1 november security patch) ?

 

[chanchan05]

Can't you just install from the Play Store instead of using an apk?

 

[albertdark]

Certain app can be obitained just from apk

 

[chanchan05]

What app is that? Samsung already released its apps on the Play Store and Galaxy Store. If it's not there, then it's probably not supported anymore on the new update.