Detect what version of Play Services is installed.

GSF (Google Services Framework) ID Viewer.

Update Play Services to the latest version to fix Google Play Services Has Stopped error.

can't download app - Error code 924
xxx can't be downloaded due to an error (Error code 921)
xxx can't be downloaded due to an error (Error code 491)
xxx can't be downloaded due to an error (Error code 495)

Play Services Utility is an unofficial Google Play services app.