If you’ve already installed iOS 11 beta 1:
restart your iPhone or iPad, you should see the iOS 11 Beta 2 OTA when you navigate to Settings > General > Software Update,
Download and Install button to install iOS 11 beta 2.
iOS 11 beta for the first time:
Download the Configuration Profile from the Apple Developer download page
On your iOS device: Download the Configuration Profile directly on your iOS device and follow the installation instructions.
On your Mac or PC: Save the file to your hard disk and email it to an account on your iPhone. Tap the Configuration Profile in Mail and follow the installation instructions.
~Plug your device in to power and connect to the Internet with Wi-Fi.
~Tap Settings > General > Software Update.
~Tap Download and Install.
~To update now, tap Install. Or you can tap Later and choose Install Tonight or Remind Me Later. If you tap Install Tonight, just plug your iOS device in to power before you go to sleep. Overnight, your device will update automatically.
~If asked, enter your passcode.
~turn find my iphone feature off
