Apple has released the latest i OS 10.1 version, if you are running with an i OS device which is i Phone 5 latter, i Pad 4/i Pad mini 2 latter or i Pod touch 6, don't hesitate to install i OS 10 on your i Phone i Pad.
And also check this full guide to upgrade to i OS 10/10.1 to make a smooth upgrade.
Then your device will restart, and you can experience the latest i OS 8 immediately!
1) Connect your device to your computer, and i Tunes should launch automatically. 2) Click your device icon from the left side bar, then tap the "Summary" tab.
This is also typically the fastest way to update i OS: Installation proceeds on it’s own after i OS 9 has finished downloading, and the device will reboot itself to complete setup of i OS 9, including the option to configure Hey Siri and a 6-digit passcode for locking the device.
Users can also choose to update to i OS 9 by connecting their i Phone, i Pad, or i Pod touch to a computer running a new version of i Tunes and choosing to install the update when it has been detected and prompts the user.
Then follow the Step-by-step instructions to install i OS 8 on your device now.
The easiest way to get i OS 8 on your i Phone/i Pad/i Pod touch is to install i OS 8 directly from your device.
For best results, you may want to right-click the target file and choose to “Save As”, be sure the file downloading has a extension: i OS 9 IPSW for i Phone Updating i OS with firmware is slightly more technical, but can be advantageous for users who are installing the same update onto multiple same-model devices, which is fairly common in offices and various scale enterprise deployment situations.
Additionally, using IPSW for an update can be necessary for more extreme troubleshooting scenarios, and some users just prefer to use them.
Always backup the device before beginning an i OS update, either to i Cloud or i Tunes is fine, but backing up is important, do not skip this step.
The easiest way to update to i OS 9 for most users is through the Over-the-Air Software Update mechanism on the i Phone, i Pad, or i Pod touch itself.
There are some common problems or issues that you may encountered during or after updating to i OS 8, like puzzeleed on how to space up your device to get the i OS 8 installing package; the device gets frozen or stopped during i OS 8 installing; or the device stuck on Apple logo after i OS 8 updating etc.