If you can't override the lost mode on your iPad, you can remove it via
iCloud.com, Find My app or emergency call. You may need this post: How
to Turn off Lost Mode
To deactivate the Find My feature without password, you can use DNS
bypass or contact Apple. How to Turn Off Find My iPad with or without
Apple ID Password in 6 Ways
It's easy to remove the iPad locked to owner when you own the Apple ID
password, but if you can't contact the previous Apple ID owner, you may
try DNS bypass, and this is the only way to bypass this lock screen. You
can follow the specific steps in t...
You may need: 1. A Guide to Disabling & Preventing iCloud Activation
Lock2. How to Bypass iCloud Activation Lock [Ultimate Guide]3. How to
turn off Apple's Activation Lock
With an Apple ID password, people can remove the Activation Lock easily
from Apple devices. However, if you're unable to contact the previous
owner, it'll be more difficult to disable the Activation Lock. Maybe you
can take a look at this post: How t...
