unauthorised software installed problem

[ᴳᵒᵈKrishna]

I am flashing a latest firmware from samfirmware
but after flashing this rom it can't activate samsung pay
secure folder etc
what can I do
please help

[Nishitkohli]

why did you done that you have tripped your security go to service centre and change motherboard now.

[ᴳᵒᵈKrishna]

motherboard ???

[ᴳᵒᵈKrishna]

why

[TuhinS]

Did u allow to download other unknown applications other than from playstore?

[ᴳᵒᵈKrishna]

yes

[TuhinS]

Scan ur phone from device maintenance and check for virus.

[durgaprasaddp]

u can't get s features if u installed custom rom or rooted!!!

[ᴳᵒᵈKrishna]

my phone haven't any custom Rom installed and root
it has stock rom installed

[durgaprasaddp]

then reset ur phone or visit customer service