Idioms With Bit. While it employs BIP32 system it is possible to even now import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 Edition which some wallet use for that era of seeds. Passphrase values are saved while in the /.tmp.tmp file around the MicroSD card. https://spencerjufoy.wikijournalist.com/4942357/the_anatomy_of_a_bip39_phrase_entropy_phrases_and_security