As most of us already know, HTC started offering bootloader unlocking support on its HTCDev website mid last year. However, many users have been experiencing problems when trying to unlock their bootloaders using the HTCDev website. The issues include the site appearing to be down much of the time, seemingly due to server overload, or crashing in the middle of the unlocking process.
XDA Senior Member nicholaschum has posted a method that can potentially help with these issues, allowing you to easily unlock your HTC device bootloader. The method requires that fastboot, HTC Sync, and Java installed on your computer. It involves getting your device’s identifier token directly using fastboot and posting it to HTC’s unlocking website to proceed successfully, thus eliminating the need for the website’s script to perform this step.
For more information and the complete instructions, head over to the original thread. Because this method still relies on HTCDev servers, it is not guaranteed to work all of the time. However, it should increase your chances since fewer steps are being done with the site._________