how to reset ipad

If you don't know the passcode then you'll have to restore it to fix this issue. However, keep in mind that if this device is still logged in with their Apple ID and password, and find my was active then as soon as you restore it, it will automatically go into activation lock. Activation lock is designed to keep someone from entering a stolen device, and keep their data protected.

I would reach out to whoever gave you the iPad and ask them to first remove it from iCloud.com/find. Then restoring it should fix the issue.

See these articles:

If you forgot your iPad passcode - Apple Support

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

How to remove Activation Lock - Apple Support

Hello,

It appears you may have a disabled mobile device or forgotten device passcode. Refer to this support article for various methods that you can use to resolve this; which one you can use depends upon your equipment configuration. --> If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support

How to reset your device if you are running iOS 15.2 or later:

If you're using an eSIM, contact your carrier before trying these steps and ask for a QR code to set up your eSIM again.

1. From your device's Lock Screen, try to enter your passcode five times until the "[Device] Unavailable" screen appears and your device asks you to try again later.

2. When you're able to, continue to enter your passcode until the "Security Lockout" screen appears and you get the Erase [Device] option in the bottom corner of the screen.
 3. Tap Erase [Device], then tap Erase [Device] again to confirm.

4. Enter your Apple ID password to sign out of your Apple ID on your device.

5. Tap Erase [Device] to permanently delete all of your data and settings.

6. When your device restarts, follow the onscreen instructions to set up your device again, restore your data and settings from a backup, and set a new passcode.

If you can't follow the above steps (e.g., you are using an older iOS version), you can use a computer to reset your device --> If you forgot your iPhone passcode - Apple Support .

You can only reach the "Security Lockout" screen if you have an active cellular or Wi-Fi connection and previously enabled Find My ( Find My - Official Apple Support ) on your device. After you try to enter your password ten times, your device will either erase itself or show Security Lockout and the option to Erase [Device] without a timer, depending on how you previously set up your device. 

Read the support article for full information. You can also watch the 5 min. 16 sec. video "How to restore your iPhone if you forgot your passcode" at https://www.youtube.com/watch/7s8-zLG9ySQ

Whichever method you use will result in erasing the iPhone. You can, however, restore it from a backup as described in this support article --> Restore your iPhone, iPad, or iPod touch from a backup - Apple Support

Here are resources if you are prompted for your username and password and have forgotten them:

If you forgot your Apple ID email address or phone number - Apple Support Note that typically this is an email address you use.

If you forgot your Apple ID password - Apple Support

If you do not have a computer, use this link Find Locations to find an Apple service location, or ask a friend if you can use theirs.

If the iPad that you have been given is locked with a Passcode, is disabled or Activation Locked, you will need assistance from the previous owner - as without their help the iPad is (and will remain) useless to you. If you are able to contact the original owner, they will require this information:

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

Resetting the iPad will trigger an Activation Lock. Here are the Apple support pages that outline the Activation Lock - and the only mechanisms by which it can be satisfied:

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Turn off Activation Lock – Apple Support

As you will discover, unless you are the owner of the AppleID that was last used to activate the device, you’ll not be able to defeat or bypass the Activation Lock. With documentary evidence that you are the original owner (such as the original sales receipt showing the serial number), Apple may be prepared to assist - otherwise they and nobody here will be able to help you.

For information, here is what Apple suggests when acquiring a previously used device:

Check for Activation Lock before you buy a device from someone else

Before you buy an iPhone, iPad, or iPod touch, from someone other than Apple or an authorized Apple reseller, make sure that the device is erased and no longer linked to the previous owner’s account. Follow these steps to check if the device is ready to use: 

1. Turn on and unlock the device. 
2. If the passcode lock screen or the Home screen appears, the device hasn't been erased. Ask the seller to completely erase the device by going to Settings > General > Reset > Erase All Content and Settings. Don't take ownership of any used iPhone, iPad, or iPod touch until it's been erased.
3. Begin the device setup process.
4. If you're asked for the previous owner’s Apple ID and password, the device is still linked to their account. Hand the device back to the seller and ask them to enter their password. If the previous owner isn't present, contact them as soon as possible and ask them to use a browser to remove the device from their account. Don't take ownership of any used iPhone, iPad, or iPod touch until it has been removed from the previous owner’s account.

You will know that a device is ready for you to use when you're asked to "Set up your iPhone," “Set up your iPad," or “Set up your iPod” the first time you turn it on.