Apple still signs for for OTA updates on selected legacy iOS versions on iPad 2 devices. This is due to bugs in the migration scripts and partition resizing that cannot be retroactively fixed.
If you are currently on 9.3.4/9.3.3/9.3.2/9.3.1/9.3/9.2.1/9.2/9.1/9.0.2/9.0.1 and if your iPad 2 is manufactured before March 2012, you can revert back to 6.1.3 or 8.4.1.
If you are currently on 9.3.4/9.3.3/9.3.2/9.3.1/9.3/9.2.1/9.2/9.1/9.0.2/9.0.1 and if your iPad 2 is manufactured after March 2012, you can revert to 8.4.1.
can you please post or send me a link to how I may downgrade my old iPad2? been needing to do this for a long while.