Bip39-Standalone. Due to the cryptographic style of BIP-39, a weak passphrase isn't going to lessen the protection of another wallets or assist reveal the seed words. Sure, BIP39 passphrases are case-delicate. Make sure you enter your passphrase just while you set it up, such as any uppercase or lowercase letters. https://thebookmarkplaza.com/story19099480/bip39-wallet-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work