1. Tap Recent Apps (the square or stacked squares icon on your Android home bar).
  2. Swipe the Boost app to close it.
  3. Tap the AllApps icon.
  4. Tap and hold the Boost icon.
  5. Drag the Boost icon onto the Uninstall icon.
  6. Tap OK to uninstall.
  7. Open the Play Store on your phone.
  8. Search Boost.
  9. Tap Install.
  10. Tap Accept.
  11. Open Boost.