The 495 error code appears while attempting to download apps or games in the Google Play Store over WiFi. When downloading the same apps with your mobile data, it seems to work fine. Don’t worry the fix for the error 495 is quite simple and many users have successfully applied the solutions mentioned in this post. Just try these steps:
Go to Settings>> Application Manager or Apps>> Open “All” apps
From the list of apps find Google Play store >>Clear Data and Clear Cache
From the list of apps find Google Service Framework >> Clear Data and Clear Cache
Now install or update app from Google Play Store
If it still didn’t work try uninstalling Google Play Store updates first