HELP: Cannot Install 3rd Party Apps/APKs!

[Just_Panic]

I figured it out. My father had installed a blue light filter and it was interfering with the touch response...

I went through my phone and I don't have a bluelight filter, yet I still can't press the "install" button. It just won't click. I use a Samsung Galaxy S6 Edge.

 

[CageBirds]

It's all ill effects of Blue light filter and likes of it.
uninstall BLFilter, and it's Done!!!

 

[minnemike]

Glad I found this - same thing happens with Lux app.

 

[dmm202]

Glad I found this - same thing happens with Lux app.

Some themes also disallow third party installation. try using the system themes when installing.

 

[eljhay pascual]

same issue here.I have already enabled the unknown sources on my Samsung j7 pro, when open the apk I can't hit the install button
is it normal for j7 pro?

 

[Destiny Centano]

what is the blue light filter called & how do I uninstall it?

 

[Lameesah Islam]

same issue here.I have already enabled the unknown sources on my Samsung j7 pro, when open the apk I can't hit the install button
is it normal for j7 pro?

Same w/ me ;-;

 

[HoplessleyLost]

Didnt work . I allowed unknow apps nd click install and stil no