Bip39 Vs Slip39. Press X to abort passphrase application and hold enhancing the passphrase. Choosing CANCEL soon after an abort will halt the process. BIP39 can be a style implementation that lays out how copyright wallets build the set of words (or "mnemonic codes") which make up a mnemonic sentence, https://madbookmarks.com/story18624541/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-wallets