I'm sorry to hear about your friend's situation. It seems like their Facebook account has been compromised, and the häçker has changed the email and password, as well as removed the backup email address and phone numbers associated with the account. Your friend has already provided valid identification and requested help from Facebook, who has asked for an email address. However, when your friend searches for the given Gmail address, both their account and the häçker's account appear. When your friend tries to reset the password using the code sent to their Gmail, it says the code is incorrect, even though it was sent by Facebook.
This situation can be quite challenging, but there are steps your friend can take to try and regain control of their account:
1. Contact Facebook Support: Your friend should continue to reach out to Facebook Support and provide as much information as possible about the situation. They can do this through the Facebook Help Center or by reporting the issue directly on their account.
2. Use Trusted Contacts: Facebook has a feature called Trusted Contacts, where your friend can select a few close friends who can help them regain access to their account. They need to reach out to these trusted contacts and ask for their assistance in recovering the account.
3. Enable Two-Factor Authentication: Encourage your friend to enable two-factor authentication on their account once they regain access. This adds an extra layer of security by requiring a verification code in addition to the password when logging in to the account.
4. Be cautious of phishing attempts: Remind your friend to be vigilant and avoid clicking on any suspicious links or providing personal information to unauthorized sources claiming to be from Facebook. This could potentially lead to further compromise of their account or personal information.
Remember, it may take some time for Facebook to investigate and resolve the issue. Your friend should remain patient and continue to follow up with Facebook for updates on the account recovery process.