Thank you Coinbase for the support,but now i've got the same problem. After resetting the phone they understood what was the trouble for me. They can't handle more than three numbers per account and therefore i can't login,so they said that the only thing i can do is to disable two-factor for the moment and i should contact coinbase to do this.
I'm asking you,Coinbase, to contact authy for the information. Thank you! P.S Case number for this ticket is #48614