Person locked my iPad by trying to find the right passcode
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If your device is disabled because of a forgotten passcode, you are going to have to restore it. See the instructions here, If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support
If your device is disabled because of a forgotten passcode, you are going to have to restore it. See the instructions here, If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support
Try recovery mode, see partway down this page : If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support
Person locked my iPad by trying to find the right passcode