Can I Downgrade iPad 3 (CDMA)?

Downgrade to iPadOS 9.3.5 is Currently Supported
Apple is currently signing multiple iPadOS versions simultaneously. This temporary signing window overlap allows you to restore your iPad 3 (CDMA) to the older build(s) listed below using a computer without encountering verification errors.
August 25, 2016
July 22, 2019
August 25, 2016
August 4, 2016
July 18, 2016
May 16, 2016
March 31, 2016
March 28, 2016
March 21, 2016
Can I downgrade from an iPadOS Beta on iPad 3 (CDMA)?
Yes. If your iPad 3 (CDMA) is running an iPadOS Beta, you can always restore back to the latest signed public release using Recovery Mode in Finder (Mac) or iTunes / Apple Devices (Windows).
Can I downgrade to the iPadOS version iPad 3 (CDMA) originally shipped with?
No. Apple permanently closes the signing window for older releases. Even though iPad 3 (CDMA) originally launched with an earlier version, Apple servers will no longer authenticate that installation.
What can I do if I cannot downgrade iPad 3 (CDMA) but experience battery or performance bugs?
You can perform a clean restore to the latest signed firmware using a computer to eliminate software glitches and corrupted cache, or await the next minor point update from Apple that includes targeted bug fixes.
Can I downgrade iPad 3 (CDMA) if the signing window has closed?
No. Apple servers reject restore verifications for unsigned builds (returning iTunes Error 3194). Unsigned firmware cannot be installed on standard Apple devices.
Will restoring or downgrading iPad 3 (CDMA) erase data?
Yes. Flashing an IPSW firmware file requires a restore that wipes on-device storage. Ensure your personal data is backed up to iCloud before proceeding.