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The important password is not your "Hive Keychain Password" what's important is your Master Key and Owner Key.

If you have either of those two keys you should be able to import all your keys onto another device via @keychain.

Posted via D.Buzz

It's saved on the broken phone

Posted via D.Buzz

Might need to fix the broken phone to retrieve it.

This is also why it's important to save more than one copy of keys.

Posted via D.Buzz