How do I install APK files from unknown source?

Eka Prasaja

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Dec 15, 2014
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how to install apk files from unknown source?

Hi dad, I'm new user of android kitkat, I have no problem install apk files from playstore, but simply I can't install apk files wherever except playstore. I tried to checklist in setting "install ... from unknown source". I use file manager that already installed on my phone, then when i execute .apk files from my sd card it already shown option to install it, there are two options in bottom of dialogue box ,"cancel" and "install". But why I can't press the install button??? it shown and I can't press it, amazing.... then I push cancel button and yes that cancel button is work, awesome.... :(
 

B. Diddy

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Re: how to install apk files from unknown source?

Welcome to Android Central! Do you have a screen dimming app installed, like Lux or Haxor's Screen Filter? If so, uninstall it, or make sure the screen brightness is turned all the way up. Screen dimming apps can sometimes render certain onscreen buttons inactive, for unclear reasons.
 

James_Watson

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Re: how to install apk files from unknown source?

Are you sure that you have checked "Unknown sources"?
Or can you install app from any another Appstore other than Play Store, such as amazon appstore?