Update AirPods Pro 2 with iPad Air A1475 running IOS 12.5.7?

Hello joltcoder,

Looking over article, About firmware updates for AirPods - Apple Support, we do see the following statement:

"To use your iPhone or iPad to check that your AirPods are up to date, make sure that you have the latest version of iOS or iPadOS. Go to Settings > Bluetooth, then tap the Info button  next to the name of your AirPods. Scroll down to the About section to find the firmware version."

So, in short, it is possible the iPadOS version you're running is causing the issue with the firmware update. You may want to connect with Apple Support at Get Support for other options.

Best regards.

Hello joltcoder, 

Welcome to the Apple Support Communities. 

If you have already paired your iPad and AirPods, please be sure to follow these instructions when yo update your AirPods: About firmware updates for AirPods.

If you notice any issues, it may help to reset and pair your AirPods again following these instructions: How to reset your AirPods and AirPods Pro. 

Please reply back if you need more help.

Cheers!