The easiest way to install and update iOS on an iPhone or iPad is by Discover new apps and the latest iTunes releases in the Store. How to Update iOS Software on an iPad. Updating your iPad ensures that you have access to all the latest and greatest features. Apple makes the updating. Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS —wirelessly or using iTunes. You can also follow these steps: Another iOS update another round of bugs. I'm not an expert but i think updating via iTunes would be better because it wipes and rewrite the OS completely rather than leaving OS garbage. The leftmost search kingdom spiele personally wish I could disable that since I never use it is new for iOS 9. Launch iTunes on your Mac or Windows PC. Every update on an older phone like this worries me.