Prepare Your iPhone 6s Plus for iOS 9.2
The iOS 9.2 update isn't a small one or two bug fix update, so it is a good idea to prepare your iPhone before you upgrade. The odds that your iPhone will crash while installing iOS 9.2 is small, but we recommend taking steps so you are prepared.
At the least make sure you backup your iPhone to iCloud or to your computer using iTunes. You can also use this list of steps to prepare for the iOS 9.2 update that will help ensure a smooth upgrade.
If you back up often, a new backup will only take a few minutes, and it is well worth it.
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