Hello Frvncoj,
If you want to restore the iPad you would need to know the Apple ID username and password signed in currently to avoid Activation Lock on the iPad. The steps listed below and outlined in the following article can help with locating the Apple ID username and resetting the Apple ID password before you restore the device.
Other ways to find your Apple ID
You can check if you're signed in to the App Store, FaceTime, or Messages on your iPhone, iPad, or Mac, or check if you're signed in to iTunes for Windows on a PC. You can also go to iCloud.com or appleid.apple.com and see if your Apple ID prefills on the sign-in screen.
If you forgot your Apple ID email address or phone number
If the Apple ID is signed in on an iPhone you have access to, follow the steps below to reset the password. If the Apple ID is signed in on another device or not a device at all, follow the remaining steps in the following article.
- "Go to Settings.
- Tap your name > Password & Security > Change Password.
- Follow the onscreen instructions to reset your password."
If you forgot your Apple ID password
After you've regained access to the Apple ID, you'll be able to follow the steps in article below to restore the iPad if you forgot the device passcode.
If you forgot your iPhone passcode
If the iPad has Activation Lock enabled, the following article provides the right next steps for that issue.
How to remove Activation Lock
Take care!