iOS 11 is coming in Fall 2017, and Apple has put several beta versions (public betas also) for developers and those enrolled in its beta software program. If you are planning to install the latest iOS 11, make sure you do some prep work before doing so.
- Check compatibility
Apple will terminate the support for 32-bit devices in its new iOS 11, which means the iPhone 5, iPhone 5c, and iPad 4 do not support the software update.
iOS 11 compatible iPhone, iPad and iPod touch models:
iPhone: iPhone 7 Plus, iPhone 7, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5s
iPad: 12.9-inch iPad Pro, 9.7-inch iPad Pro, 10.5-inch iPad Pro, iPad Air 2, iPad Air, iPad (fifth-generation), iPad Minit 4/3/2
iPod touch: iPad touch 6th generation
- Back up your device
This is not a mandatory step, but it is suggested to do so. If anything goes wrong during the upgrade like data loss or update failure, you can restore your data from backup.
There are several ways to back up your iDevice. Connect your iPhone or iPad to computer and open iTunes on computer. Go to Summary > Backups, click Back Up Now to back everything up.
Instead, you can also back up iPhone/iPad with iCloud. Go to Settings > Apple ID > iCloud > iCloud Backup, turn on iCloud Backup and it will back up your iPhone automatically when your device is connected to Wi-Fi network.
Read Also: Backup iPhone without iTunes or iCloud
- Check whether there is enough space to install iOS 11
To install iOS 11, you need to make sure there is enough free space on your iPhone. We suggest that you free up at least 2 GB space for the new iOS 11.
If your iPhone or iPad is running out of space, you can use iCareFone to clean up junk files and free up more storage on your device.
- Have the latest iTunes installed on computer
Having the latest iTunes installed on your PC/Mac is essential to run iOS 11 smoothly. To do this, you can click on the iTunes > Help > Check for Updates on Windows, and iTunes > Check for Updates from top menu on Mac.
- Fully charge your iOS device
If you are planning to update via OTA (over the air), make sure your device is completely charged. If it dies during update, that could be disastrous.
- Download the most recent stable iOS 10 firmware file in case you need a downgrade
What if the new iOS 11 does not run as smoothly as possible in your device? You can downgrade to iOS 10.3.3 before Apple stops signing for this version. You can download the iOS 10.3.3 firmware for your device from this link: http://www.tenorshare.com/ios-firmwares/download.html