Oct 10, 2018
Sep 21, 2014 How to Upgrade from iOS 8 to 10.2 with Prometheus May 01, 2017 How to Upgrade to iOS 8 Right Now - Lifehacker Back Up! Before you upgrade, make sure you back up your device with iTunes. This is the final version of iOS 8, but that doesn't mean it won't be without problems. Apple Confirms New iPhone Display Issues
Back Up! Before you upgrade, make sure you back up your device with iTunes. This is the final version of iOS 8, but that doesn't mean it won't be without problems.
How to Back up iPhone before Upgrading to iOS 8/9/10/11 Jun 13, 2018 Here's how to update your iPhone or iPad to iOS 12 Sep 16, 2018
Update iPhone 4 to iOS 8 or 9 - Is this Possible?
Possible to upgrade iOS from 8.4.1 to 9.1… - Apple Community Dec 03, 2017 How to Upgrade iPad to iOS 8 - Info | Remo Software