Open a Terminal window, drag the restore.sh script from the Legacy iOS Kit folder into the terminal, and press Enter. Select from the on-screen menu.
Navigate to the following folder path: /System/Library/CoreServices . downgrade ipad 2 ios 9.3.5 to 8.4.1
Once you are on 8.4.1, disable OTA updates by installing the tvOS profile (search for “tvOS 12 beta profile”). This prevents accidental popups asking you to upgrade back to iOS 9. Open a Terminal window, drag the restore
This method works for the iPad 2 (except model iPad2,4). Step-by-Step Downgrade Guide Open a Terminal window
The device must currently run iOS 9.3.5 or iOS 9.3.6.