Step One
Launch iTunes by clicking the application icon in your dock.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/197951/197951-64.png)
Step Two
Connect your iPhone to the computer via USB and select it from the toolbar. If you are still using an old version of iTunes you can select your device from the sidebar.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198034/198034-640.png)
Step Three
Before continuing click the Back Up Now button to ensure your device is backed up before the update.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198037/198037-640.png)
Step Four
Click the Check for Updates button to see if there are any available updates. If iTunes has already detected an update click the Update button.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198040/198040-640.png)
Step Five
iTunes will inform you if an update for your device has been found. Click the Download and Update button to continue.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198043/198043.png)
Step Six
Check out the update's changelog and click Next.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198046/198046.png)
Step Seven
Click Agree to agree to Apple's Software License Agreement.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198049/198049.png)
Step Eight
iTunes will begin downloading the new firmware. This may take a while.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198059/198059-640.png)
Step Nine
Once downloaded the firmware will be extracted and installation will begin.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198085/198085.png)
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198088/198088.png)
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198086/198086.png)
Step Ten
iTunes will inform you once the installation is complete and your iPhone will reboot.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198076/198076.png)
Step Eleven
You may be informed that there is a carrier update for your iPhone. If there is, click the Download and Update button.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198070/198070.png)
The settings will be updated.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198073/198073.png)
Click OK to acknowledge the successful installation.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198079/198079.png)
Step Twelve
That's it! You've successfully updated your iPhone to the latest firmware version.
![How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac] How to Update Your iPhone to the Latest Version of iOS Using iTunes [Mac]](/images/tutorials/43879/198083/198083-640.png)