Answer
To reactivate your Facebook account within the 14-day window after deactivation, go to Facebook.com and log in with the same email address or phone number and password you used at the time of deactivation. On your screen, you should see your timeline.
How to Reactivate Facebook Account
How to Reactivate Facebook Account
Log into Facebook using your username and password. If you receive a notice that your account has been disabled, you can appeal the decision by going to https://www.facebook.com . If your account is shut down for violating Facebook’s terms and standards, it may be due to fraudulent activity.
Facebook automatically keeps all data for deactivated accounts, allowing you to quickly reactivate the profile if you change your mind and want to use the social network again. After a period of time, Facebook does not erase old account information; thus, you may restart Facebook after a year.
Visit the Facebook sign-in page. In the upper right corner of the screen, fill in your email address and password for your deactivated Facebook account. Select “Log In” from the drop-down menu to automatically reactivate your Facebook account and restore its previous settings.
The process usually takes between 30 minutes and one week. There may be no response from the Facebook support team for a long time in some situations (It depends on why they have blocked your account.) nSee this thread Why is ID verification taking so long? , the top answer advises waiting at least one week.
You can add more information here for up to 30 days after your account was disabled. After that, your account will be permanently disabled, and you will no longer be able to request a review.
You may reactivate your Facebook account at any time by logging back into Facebook or using your Facebook account to log in somewhere else. Keep in mind that you’ll need access to the email address or phone number you use to sign in.