Bip39 buffer is not defined https://archerujcb329.tearosediner.net/comprehending-the-function-of-bip39-in-copyright-pocketbooks Even though it works by using BIP32 strategy you may nonetheless import BIP39 seeds into Electrum wallet. Also in addition to BIp32 There's BIP44 Variation which some wallet use to the technology of seeds. Want to examine which wallets help the BIP39 mnemonic... https://peakbookmarks.com/story20750724/bip39-eth-5-simple-statements-about-bip39-converter-explained-https-dzen-ru-bip39-phrase-com