You Should Prepare for iOS 12.3.1
If you're still running iOS 11, but you're planning to install iOS 12 on your iPhone X in the near future, know that a little prep work will help you avoid major headaches. Same goes for those of you planning on a move from iOS 12.0/iOS 12.0.1/iOS 12.1/iOS 12.1.1/iOS 12.1.2/iOS 12.1.3/iOS 12.1.4/iOS 12.2 to iOS 12.3.
We're having a good experience on iOS 12.3.1, but there's always a chance something goes wrong on your device.
You can't predict the type of performance you'll get out of the new software so you'll want to prepare yourself and your device for the upgrade.
We've put together a guide that will take you step-by-step through the installation process. You don't need to follow every single step, but the more you do ahead of time the better off you'll be.
At the very least you'll want to make sure all of your data is backed up properly. Data loss issues are rare these days, but it's important to backup the priceless photos, videos, or other data (game saves, etc) you store on your device.