This is what I need to do to upgrade Hboot from 1.36 to 1.79, so I would get stuck on no 4
Even with the .zip method you'll need to relock/unlock the bootloader. It's NOT flashable in
recovery. Create a new account at htcdev.
Here's how to use the zip:
1. fastboot oem lock
2. fastboot oem rebootRUU
3. fastboot flash zip firmware.zip (do several times if it fails)
4. fastboot flash unlocktoken Unlock_code.bin.
Thanks in advance