That being said, if you are, for whatever reason, still using your iPhone 5, then you might want to make sure you’re updated to the latest version of iOS that is available for your phone. This is because Apple has started to issue warnings to iPhone 5 owners that if they do not update their iPhones to iOS 10.3.4 by the 3rd of November, they could lose some online functionality.
According to Apple, “If you have an iPhone 5, it’s especially important to update your device’s software wirelessly or using your computer before November 3 to maintain accurate GPS location and to continue to use functions that rely on correct date and time including App Store, iCloud, email, and web browsing.”
While your phone will continue to work, note that certain services and functionality could be disrupted. Apple also notes that if you fail to update by that time, you will need to do a “backup and restore” using your Mac or PC as OTA updates will no longer work.
Filed in iOS, iOS 10, iPhone and iPhone 5. Source: support.apple. Read more about