For a visual walkthrough of the jailbreak and file editing process:
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. downgrade ipad 2 ios 9.3.5 to 8.4.1
Highly Recommended (with caveats). Downgrading your iPad 2 from the sluggish iOS 9.3.5 to iOS 8.4.1 is one of the most effective ways to breathe life back into the device. However, it is not a simple "click restore" process. It requires using a special "trick" that exploits Apple's still-signing OTA (Over-The-Air) update for iOS 6.1.3. For a visual walkthrough of the jailbreak and