I am trying to unlock the bootloader of a friend's HTC Hero, and I'm following the official process on HTC's developer website. I got to the point where I give the command
fastboot oem get_identifier_token, but it fails with a
command error. I did some research, and apparently the phone needs an HBOOT upgrade to work properly. I cannot find instructions anywhere on how to do this, unfortunately.
How do I go about this so that I can continue the unlock process?