The Download Booster is a feature that will allow your device to download large files (over 30 megabytes in size) faster by using a Wi-Fi connection and a mobile data connection simultaneously. Follow the steps below to enable the Download Booster.
How do I stop automatic updates on my s7?
Enable or Disable Automatic Application Updates
From the home screen, tap Play Store.
Tap the Menu icon.
Scroll to and tap Settings.
Tap Auto-update apps.
Tap to select the required option: Do not auto-update apps. Auto-update apps at any time. Data charges may apply. Auto-update apps over Wi-Fi only.