You Should Prep Before Installing iOS 9
The iOS 9 update is a big update and big updates have the potential to foul up your iPhone 6's performance.
This is precisely why we've put together a game plan for the iOS 9 update. We recently outlined some steps to take before you install the iOS 9 update and we've put together some tips that will help you once you elect to install the brand new software on your iPhone 6.
You don't need to follow every single one of these tips but we strongly recommend doing a little prep work before you initiate iOS 9 download process. It should go a long way.