Solved! How to put back the old fb account in the new phone

Apr 1, 2018
I have 2 Facebook accounts, I damaged my phone n bought a new phone, now I can get 1 account in my new phone but I don't know how to bring my other fb account because I used the same open both accounts .
Those accounts would have different user names, sign in to the other user name. If you are talking about the Facebook app, I don't think you can have multiple accounts signed in at once in it.