Installing 14.2 update
Unable to install update. No explanation given when install fails. Currently have version 13.3 (I think)
iPad Pro, 13
Question marked as
Your iPad is too far behind in iPadOS upgrades/updates.
You need to do the upgrade with your iPad connected to a PC or Mac, connected to the Internet, running the latest iTunes, and let iTunes perform the iPad upgrade.
If using a newer Mac with one of the current macOS versions, then you use the macOS Finder to do the iPad upgrade to iPadOS 14.2.
Best of Luck to You!