My new iPad Air 6th generation is stuck in the initial update mode

If the update process has seemingly stalled for several hours, you may need to perform a forced-restart:

Force restart iPad (models with Face ID or with Touch ID in the top button)

If your iPad doesn’t have the Home button, do the following:

1. Press and quickly release the volume button nearest to the top button.
2. Press and quickly release the volume button farthest from the top button.
3. Press and hold the top button.
4. When the Apple logo appears, release the top button.

Force restart iPad (models with the Home button)

Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.

When performing a system software update, keep the device connected to its Power Adapter - as this will keep the WiFi connection active during the update process.