Downgrade Ipad 2 Ios 9.3.5 - To 8.4.1
update. Because the iPad 2 cannot jump directly from iOS 6 to iOS 9, Apple uses iOS 8.4.1 as a mandatory stepping stone. Enthusiasts exploit this by tricking the iPad into thinking it is running an older version (like iOS 6.0), which triggers the system to offer iOS 8.4.1 as the "next available" update. The Practical Trade-offs
You cannot enter the required mode just by holding buttons. You must use the exploit. downgrade ipad 2 ios 9.3.5 to 8.4.1
Click and wait for the process to complete. The iPad will reboot into iOS 8.4.1. update