[header] How to manually update google play [title] Head to security settings. [step] Tap the gear icon on your home screen or apps drawer then find " security " from the options. [title] Check " unknown sources. 
[step] Scroll down through the security settings until you get to " unknown sources " and make sure it has a check mark beside it. This will allow you to install apps that aren't from the version of google play you are currently running (like the updated version).