Due to your own risk i am not warranty that your account dies
How to change password and enable 2fa
You login your account on chrome or ldplayer and leave it for 3 or 5 days
In this tip you need to unlock hotmail to recover code
Now go to facebook and get to https://accountscenter.facebook.com/password_and_security and click on Change Password and click Forgot password it will send code to your hotmail to reset new password
when you leave your account in your device for a few days and when you go to www.facebook.com and turn on 2fa it will need you to enter code from hotmail to enable 2fa
just go to hotmail and enter the code you received to facebook now you enable 2fa successfully
