If you're looking to update Google Play Services manually using an APK (Android Package File), you'll need to find a trusted source. However, I must emphasize that:
Tip: Check your device's architecture (ARM, ARM64, or x86) to ensure you download the right file. google play services update apk for android 44 2 verified
If your device is stuck on an older version, you can manually update it by sideloading the verified final APK. Google Play services (Android 4.4+) APKs - APKMirror If you're looking to update Google Play Services