BIP32, which derivation path you are using?

We are using same paths as old Hive Wallet:
external account: m/0'/0
internal account : m/0'/1
External account for receiving and internal account for change.
In order to import passphrase you need to import both accounts.

We are using https://github.com/bitcoinjs/bip32-utils is designed by this documentation https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki