Error 495:
Problem:
While downloading apps and games from Play Store
Solution:
Method 1:
Go to Settings>> Application Manager or Apps>> open "All" apps
From the list find Google Play Store >> clear data and clear cache
Find Google Service Framework (Google Play Services) >> clear data and clear cache
Install or, update app from Play Store
If the issue still persists, try uninstalling Play Store updates
Method 2:
Go to System Settings>> Accounts>> Google>> remove your gmail account
From Settings>> apps>> All> Force Stop then clear data and cache for Play Store, Google Service Framework (Google Play Services) and download Manager (like in method 1)
Go to Settings>> Accounts>> Google>> add your gmail account
Restart your device then accept all Google terms and set up Google settings
Re-run Play Store and update or, install your app.