: Finally, restart the device to ensure all changes take effect.
If you cannot sign in to your Google Account through the app, try adding the account via Settings > Accounts > Add Account > Google before opening the Play Store. Alternative Solutions for Android 4.4.2 Download Google Play Store Android 4.4 2
You can download and install the Google Play Store on Android 4.4.2 by sideloading the last compatible APKs (Play Store 38.x + Play Services 23.x). However, this is a palliative measure. Due to expired TLS certificates and Google's end of support, the experience will be frustrating: slow, prone to errors, and unable to run most current apps. For a functional device, your best path is either to treat the KitKat device as an offline media player or to retire it entirely. Preserving old Android versions is admirable for nostalgia, but for daily use, the Play Store on KitKat is no longer a viable solution. : Finally, restart the device to ensure all
This happens if the APK file is corrupted during download, or if you downloaded a version meant for a newer Android version (like Android 5.0+). However, this is a palliative measure