Apple today seeded the second beta of iOS 11.1 to developers. iOS 11 beta 2 brings hundreds of emoji and 3D touch app switcher. If you want to experience these new features, install iOS 11.1 beta 2 with 3uTools. 

Here, iOS 11.1 beta 2 is available on 3uTools, you can now install easily. 

Step 1 Launch the latest version of 3uTools and then connect your iDevice to your PC. 

Step 2 Click Flash & JB -> Easy Flash, select iOS 11.1 beta 2 as the following picture. Click "Flash" to start the process. ( If you want to save data, just select the option "Retain User's Data While Flashing" before flash.) Here, we did not select this option. 

Step 3 Keep a good connection and internet while flashing. After a few minutes, your iDevice will automatically reboot. 

Now you can experience new features from iOS 11.1 beta 2.