Should you followed the ways earlier mentioned now you have to be able to produce and verify the correctness of BIP-39 seeds yourself (with minimal assistance from tools like binary to hex to decimal converters). This extra complexity enhances the possibility of misplacing the passphrase, and therefore losing your copyright. https://setbookmarks.com/story19648964/detailed-notes-on-copyright-wallet-seed-phrase-out-of-bip39