<strong>How to fix unresponsive buttons while installing an APK?</strong> Hey Technobezz! I am having an issue again. This time is with my Nexus 9.. Long story short: I am trying to install an APK and I get taken to the permissions screen with "cancel" and "next". "Next" button does nothing. Scroll to the bottom of the permissions list and the "next" changes to an "install" but that button does nothing either. Hitting "cancel" or clicking anywhere outside the permissions box will just close the installer. Any help please?