There are some steps you should take before you install Apple’s new iOS 12.4.2 update on your iPhone, an iPad, or iPad touch.
Apple’s released a new version of iOS 12 and iOS 12.4.2 is a small maintenance release that brings a patch for a security vulnerability.
If you’re running iOS 12.4.1 and moving to iOS 12.4.2, you get the shortest list of changes and the smallest download size. If you’re running an older version of iOS, your iOS 12.4.2 update and download is more substantial thanks to the updates you skipped. They’re baked into your iOS 12.4.2 update.
iOS 12.4.2 is an important upgrade, but it’s impossible to predict how your device will react to the move. While some of you will see an improvement, many others will run into bugs and performance issues that could have a major impact on day-to-day use.
A little prep work can go a long way toward preventing problems and headaches and that’s why we recommend spending sometime preparing yourself and your device ahead of your upgrade.
If iOS 12.4.2 starts causing problems, you can try manually fixing your issue(s). If you can’t find a fix, you’ll need to contact Apple. There’s no way off iOS 12.4.2 once you make the move.
Apple is no longer signing on iOS 12 which means those of you jumping up from iOS 12.4.1 and below need to be extremely careful with iOS 12.4.2. Once you make the move, you’re on your own.
We’ve put together plan that takes you through some of the things we do before we install iOS software. These tips will come in handy as you transition your device from whatever it’s currently running to iOS 12.4.2.
Backup Your Data
Backing up your data is arguably the most important thing you'll want to do before installing iOS 12.4.2 on your device.
Data loss issues are rare, but if you store important files on your device it's much better to be safe than sorry. There's always a chance something goes wrong.
Many of you already know how to backup your data, but if you need some help, we've got you covered.
We have a guide that will take you through the backup process using iTunes. If you prefer to avoid iTunes, we also have a guide that goes over the backup process via iCloud.
If you store a lot of data on your device this process could take awhile to complete so you'll need to remain patient. It'll be worth it in the long run.
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