http://wccftech.com/ios-11-1-beta-2-released-heres-how-to-update-iphone-ipad-right-now/

Apple has just released iOS 11.1 Beta 2 for registered developers. We’ll show you how you can update your iPhone and iPad right away.

It is that time of the week again when Apple mans the helm and sends out a few betas out in the developer domain. If you are a registered developer, then you can download and install iOS 11.1 Beta 2 right away on your iPhone and iPad over the air. Of course, there are IPSW files available to you as well, given you wish to take clean install route using iTunes.