Bip39 checksum http://www.video-bookmark.com/user/tucanewhmt The purchase of your mnemonic phrase issues. Should you mess up the purchase then You can not Get well your wallet. All of your money might be shed forever. Ensure you have an appropriate backup. BIP39 solves this by making use of human-readable seed phrases made up https://thebookmarknight.com/story20627028/bip39-standalone-not-known-factual-statements-about-bip39-word-list-txt-https-t-me-bip39-chat