Bip39 Ian Coleman. The passphrase just isn't picked from your predefined list of 2048 words – it can be any word or phrase you decide on. Certainly, BIP39 passphrases are case-delicate. Be sure to enter your passphrase particularly as you set it up, which include any uppercase or lowercase letters. https://socialistener.com/story5007784/ian-coleman-bip39-https-linktr-ee-bip39-bip39-words-an-overview