Just Go to Menu > Settings > Security > and check Unknown Sources to allow your phone to install apps from sources other than the Google Play Store. To install the Critical Ops: Online PvP FPS.apk, you must make sure that third party apps are currently enabled as an installation source.
Step 2: Allow Third Party apps on your device.
If you download the apk on a computer, make sure to move it to your android device. You can do this right now, by using any of our download mirrors below. In 4 Simple Steps, I will show you how to use Critical Ops: Online PvP FPS.apk app on your Phone once you are done downloading it: Step 1: Download the Critical Ops: Online PvP FPS.apk on your device How do I set up Critical Ops: Online PvP FPS? It is the package file format used by the Android operating system for distribution and installation of mobile apps. The APK means Android Package Kit (APK for short). APK files are the raw files of an Android app similar to how. In other to have a smooth experience, it is important to know how to use the APk or Apk MOD file once you have downloaded it on your device.
