Prepare Your iPhone 4s Before Installing iOS 8.4.1
If you do decide that you want to make your move to iOS 8.4.1, we recommend preparing for the installation process. This will help you cut down on potential problems though it won't guarantee your device's safety after the move. iOS updates are extremely unpredictable.
We've put together some steps to take before you install the iOS 8.4.1 update on the iPhone. We also recently put together some tips that will help to make the transition from whatever you're on to iOS 8.4.1 a whole lot easier.
You don't need to follow these instructions step-by-step but there are the things that we do before every update and they seem to work. Give them a shot if you're feeling nervous about the iOS 8.4.1 update and the installation process.
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