Bip39 Passphrase. You should then do a basic recovery using a command such as the one under. (This command works by using a sample wallet file bunlded with BTCRecover) Mnemonics are illustration of entropy. First step requires building a decision concerning the amount of entropy you concentrate on safe on https://johsocial.com/story9188366/bip39-wallet-https-linktr-ee-bip39-not-known-details-about-bip39-wallets