When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted., Please enter your email or mobile number to search for your account., Find out what to do if you're having trouble logging in, or learn how to log out of Facebook., See posts, photos and more on Facebook., For best results, use a device you've used to log in before. If you’re helping someone else, make sure they try these steps on a device they’ve used to log in before., Visit facebook.com/login/identify in a browser. Enter an email address or phone number you think might be associated with your account. Make sure that the account that comes up is yours. If it isn’t, click Not you? and try searching with a different phone number or email address..