"Install blocked. For security, your phone is set to block installation of apps from unknown sources."
"From where? One of those sketchy sites? You probably just installed malware on top of your problem," he said gently. "Look, don't fight the hardware. If the OS is stuck on 4.4.2, the hardware probably can't handle the updates anyway. You're trying to put a jet engine on a bicycle." Google Play Store Apk Android 4.4.2
If you need to manually reinstall or update the store, follow these steps: "Install blocked