A quick pre-update preparation checklist will help your upgrade to iOS 27 go smoothly.
How to ensure a smooth transition to iOS 27
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First, there are the basic requirements. The update process requires space for temporary files as well as the main download, so you’ll need a good amount of free space. Try to have around 18-25 GB available, using unconventional ways to clean out your iPhone if you’re currently low on it.
You will also need enough power to update your device. Although 50% battery life should be enough to help you through the process, it’s much safer to keep your phone plugged in while updating. Also keep your phone connected to Wi-Fi.
Additionally, you will need to decide whether you want to start the update yourself or let it run automatically. Head to Settings > General > Software Update > Automatic Updates to configure this. If you choose Install automaticallyyour phone will not start installing iOS 27 as soon as it becomes available. Instead, it will update when charging and connecting to Wi-Fi overnight. You may receive a notification about this a few days or weeks after the update is available. To start the update manually, wait until Software update page.
While you’re thinking about it, you should also check if you’ve updated to iOS 26.6, which includes an indexing update to make it easier to switch to iOS 27’s Siri changes.
Back up your phone before the big changes in iOS 27
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Above all, don’t forget to backup your device. Installing any update, especially major updates like iOS 27, may cause issues and possible data loss. You can back up via iCloud by visiting Settings > Apple Account > iCloud > iCloud Backup > Back up now. You can also back up your data to a Mac or Windows PC. You should also make sure you have your Apple IDs handy to avoid being blocked if something happens.
Implementing these measures will make the upgrade process much smoother and prepare your device for the multitude of goodies arriving with iOS 27. Chief among these features is the new Siri app in iOS 27, Apple’s attempt to catch up with competitors like Gemini and ChatGPT. This version also brings a more readable design, faster performance, new child safety features, and many changes to other iOS apps.
