Bip39 Seed. You would probably then do a standard Restoration using a command just like the a person under. (This command uses a sample wallet file bunlded with BTCRecover) At its Main, a BIP39 passphrase modifies the cryptographic technique of wallet era. Below’s a technical look at how it works: https://bookmarkinglog.com/story18636090/bip39-wallets-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase