Why Apple is updating years old iPhones and iPads now
In a strange move, Apple is pushing an update for iPhones and iPads that were launched several years ago and are well out of their update lifecycles. The move is pretty surprising, but the release isn't aimed at introducing new features into the devices. It's a way to fix a critical problem that could make the GPS system of the dated iPhones go haywire.
What is the issue with GPS system?
GPS systems built into smartphones determine location by keeping a track of date and time. They count the number of weeks to keep an eye on the date and store that information in a 10-bit format. However, as it turns out, this information resets back to zero in under 20 years, messing the device's ability to deliver accurate location, date, and time.
New iPhones configured to handle rollover, not old ones
The week rollover issue started affecting some phones and GPS devices on April 6, 2019, prompting companies like TomTom and Garmin to issue patches. Apple says the problem would affect its hardware on November 3. It's a point of concern only for those who are using iPhones/iPads that were launched before 2012; new models have already been updated to handle the rollover.
So, this update needs to be installed before November 3
If you're still using a device as old as the iPhone 4s or iPad Mini (1st generation), it's highly recommended to install the latest release from Apple before November 3. Failing installation, the week rollover issue would come into effect, affecting the accuracy of location, date, and time on the device as well as the functions relying on them such as iCloud, email syncing.
How to update the devices
To initiate the update, open the Settings app of your iPhone/iPad and head over to General > Update. The patch will show up as iOS 10.3.4 for iPhone 5 and fourth-generation iPad while those using the iPhone 4S, first-generation iPad Mini, iPad 2, and third-generation iPad will see it as iOS 9.3.6. Also, Wi-Fi-only iPads, iPod Touch won't be affected by the issue.
