Solved Why can't i install unknown apk?

[Speed Keys]

Hello there, I have brought a new motorola g power 2020 , I try install apk from my file manager , it told me to enable install app from unknown sources , but when I go to setting to activite this option, it greyed out, even if I pressed it nothing worked , it is still greyed out and turned off

I try desable admin app , but nothing seems working. Please help me.

 

[Speed Keys]

OK I will see what I can do

 

[Speed Keys]

I agree with mustang7757, factory reset is probably the next step. Make sure you don't automatically reinstall any apps after the factory reset, and then see if you can install apps from unknown sources.

Thank you B .Diddy I did what you you told, and guess by surprised ... , It really works, now I am able to switch the button . A big thanks also to @mustang7757

 

[mustang7757]

Thank you B .Diddy I did what you you told, and guess by surprised ... , It really works, now I am able to switch the button . A big thanks also to @mustang7757

Glad we could help out