How do I reactivate my ipad once it has been disabled.

hi can you advised how i can i reactivate my disable ipad as you have been in a similar senario, many thanks

If the device is disabled, the only way to reactive it at that point would be to restore it back to factory settings using iTunes on a PC or Mac.

Read Here: https://support.apple.com/en-ph/HT204306

Now if you iPad is saying that you need to reactivate it by signing into the apple id that was used when the device was set up with the FindMy iPad Feature. What you need to do is change the password of the apple ID, then try signing back in. If you don't remember the apple id, you need to contact AppleCare and have the original Proof of Purchases of the device then they can reactivate for you at that point. WARNING: That steps take 24 to 48 hours.

I purchased this Ipad many years ago; how would I show proof of purchase