With htcdev.com recently “unlocking” phones for it’s users, it’s not only been a real challenge trying to find a way to completely unlock the bootloader, but it shows that HTC will likely continue to release phones with bootloaders locked down, depending on the sub par unlocking tool on their website to keep flashers and developers happy.
Of course, that’s not going to stop anyone from trying to get around it. This is the case with XDA Senior Member Flashmaniac, who has developed a tool that will guide users with unbranded HTC EVO 3D devices with certain CIDs through the process of downgrading their hboot versions so that they can enjoy the freedom of full root.
The tool has limitations. As mentioned, only certain EVO 3D phones can even use it. The full list of supported EVO 3Ds include:
So if you check your CID and you don’t have one of those, this tool will not work for you. Additionally, there is a little bug where the installation bar won’t finish. However, this is nothing to be alarmed about. Simply remove battery, reboot and profit.
For those carrying unbranded EVO 3Ds who want to give this a try, you can find a step by step tutorial, download links and more in the original thread._________