The Google Play Store app won't open, download or update

I can't open the Google Play Store app

First, check if the Google Play Store app hasn't been disabled accidentally: 

To enable Google Play Store.

If the issue persists, follow the steps below: 

1. Restart your mobile device.
   1. Press and hold the Power button.
   2. Tap Power off or Restart.
   3. If your device doesn't restart, press and hold the Power button + Volume Up button for 10 seconds until your device turns on again.
2. Confirm whether the Network (Mobile Data or Wi-Fi) of your mobile phone is working normally. Check the status icon to see if the data/Wi-Fi signal is adequate.
3. Perform a Clear Data and Clear Cache for Google Play Store.
   1. Go to Settings.
   2. Select  Apps → All apps → Google Play Store.
   3. Select Storage & cache.
   4. Select CLEAR CACHE.
   5. Select CLEAR STORAGE → Delete.
      IMPORTANT: The app's data, including files and settings, will be permanently deleted.
4. Update your device's firmware. Make sure the latest version of firmware is installed on your device.

I can't download or update Google Play Store apps

1. Please confirm whether the Network (Mobile data or Wi-Fi) of your mobile phone is working normally. Check the status icon to see if the data/Wi-Fi signal is adequate.
2. Clear your phone's storage and data.
   Note: These steps may vary depending on your Xperia models and Android OS version.
   1. Go to your phone's Settings → Apps → See all apps → Google Play Store → Storage & cache → Clear storage.
   2. Go to your phone's Settings → Apps → See all apps → Google Play services → Storage & cache → Clear cache.
3. Update your apps.
   1. Tap on the Play Store application.
   2. Go to your Google account icon located at the top right corner.
   3. Go to My apps and games → Overview.
   4. Go to Updates available → Update all.

   Note: If Update all is unavailable, all your apps have been updated to their latest version.

For Google Play Points or other issues with the Google Play Store, please visit Google Play Support.

If the issue persists, your phone may require a service.