Bip39 Npm. At first you must keep it Independently from your seed. Obtaining your seed and your passphrase in a similar spot defeats the objective of using a passphrase in the first place. Indeed, BIP39 passphrases are case-sensitive. Make sure you enter your passphrase specifically as you established it up, https://bookmarkpressure.com/story19005269/bip39-wallets-https-linktr-ee-bip39-bip-39-no-further-a-mystery