I cannot log in to facebook

you can use your email id to reset your password or your registered contact number if any; also facebook allows to reset password by recognizing your friends images, just try it out you will get access to your account again

I would not expect the new SIM card to keep you from logging into facebook. Normally, facebook would be controlled by your username and password.

If you have perhaps forgotten your username or password, you could try resetting it by logging in to the website (as opposed to the app) and saying I forgot my password / username.

- Flub

May be you are trying to login with invalid credentials. Try to use the username or mail address which you used while creating the account and use the correct password.
If you don't remember the credentials correctly, Use the option "Forgot your password" which is right below the password box and follow the steps.

Facebook

visit your page on another account to see user id at the end of url=www.facebook.com/??????????

that [email protected]

thats if u lost your email.if you lost your password and email then you need to contact customer care. Facebook Help Center Facebook
and Forgot Password Can Log In Facebook
I can't find my account from the "Find Your Account" page. If you're having trouble logging into your account from the Find Your Account page, try these tips:

• Ask one of your Facebook friends to look at the About section of your profile and send you the email address listed in the Contact Information section.
• Try entering every email address or mobile number you've owned (one at a time). You may have added an email address or mobile number to your account and forgotten about it.
• Enter your username. Your username is your personalized Facebook URL:
  If you don't know your username, ask a friend to go to your profile and send you the username in the URL.
• Try entering variations of your name, just in case you signed up using a nickname.
• If you're asked to enter a friend's name, try a variety of friends if the first friend you try doesn't locate an account. Remember to enter your friend's full name, not just their first name.

Help Center

go to your facebook profile.....

www.facebook.com/ after the forward slash on the URL bar should be your username aswell.

also click forgot password..the email used for FB should be ur username as well. You can also contact facebook.

What message?
According to Facebook Support Page...
Facebook stores your password in such a secure way that we don't know what it is, and we can only check if it's correct. If you can't remember your password, you can request a new password.
If you can't log into Facebook and need to reset your password:
1.Go to the login page at https://www.facebook.com
2.In the top right, click Can't log in?
3.Type the email, phone number or username associated with your account, then click Search and follow the on-screen instructions

He need to logoff from Facebook after he's done, then close the browser. Next time you logon to Facebook it will ask for username and password.

Be forewarned: If you only have one email address associated with your account, losing access to your email could mean losing access to your Facebook. You can still access your account by using your email address and password. Also, you can find a lost password by mobile phone if you assigned one. If you forgot your password or email address, you can do the following:
From Facebook:
"If you registered a username, try logging in using your username and password. A username is your personalized Facebook URL (web address) and appears in the location bar of your browser after "http://www.facebook.com/" when you view your profile. After logging in, visit the Settings tab on the Account page to locate the email address you use to log in."OR "Ask one of your Facebook friends to view your profile and send you the email address listed on your account. To do this, ask your friend to click on the "Info" tab on your Profile page and scroll down to 'Contact Information.'"

Someone obviously got into your account and change all that information. Try contacting facebook, and let them know your problem.

I have tried to re set my password, they e mailed me and told me to click on it and follow the site.It won't let me do this so I tried to copy and paste but I don't know where to find the"browser" Can you please help?