You can check out if the latest beta is available for your device by heading to 3uTools.
Apple seeded the sixth beta of iOS 11 to developers for testing purposes
Now you can upgrade to iOS 11 Beta 5 on 3uTools, experience some new features of iOS 11 Beta 5
You’re always suggested to upgrade/downgrade iDevice via 3uTools Easy Flash, because we think 3uTools Easy Flash provides you the easiest and quickest way to upgrade or downgrade your iDevice.
Apple eventually released the iOS 10.3.3 public firmware to iOS users. As you already known that this firmware is available in 3uTools now.
Now you can upgrade to iOS 11 Beta 4 on 3uTools.
Apple seeded the fourth beta of iOS 11 to developers, bringing some of the most significant changes we've seen yet in an iOS 11 beta.
Apple has just released iOS 10.3.3 which fixes a number of bugs and security issues.
Apple today released iOS 10.3.3 to the public. iOS 10.3.3 comes more than two months after the launch of iOS 10.3.2, a minor bug fix update.
If you've updated to iOS 11 beta, but want to downgrade back to iOS 10.3.2, because you found it unstable then we've got you covered.
This is an overall introduction about 3uTools advanced feature.
Apple has released iOS 11 developer beta 3 for developers on iPhone, iPad, and iPod touch. You could flash the firmware in 3uTools.