Root [CDMA] Did official unlock but still no S-Off?


♡ Truth, Justice and the American Way !! ♡ ™
Rooting with Bootloader 1.50 will still say S-ON but you will be rooted,
Will leave you with S-on, but you can still flash any ROM, kernel, theme or most anything you want.

The limitation with HTC's unlock method is that the boot partition is not flashable from recovery. This means that Kernels and ROM's with custom kernels must be flashed from Fastboot.

HTC's method
To unlock your bootloader via HTC's official method, visit their bootloader unlock page:
HTCdev - Unlock Bootloader
Note that this method only works if you have the official software version 2.08.651.2 or higher (or HBOOT v1.5 or higher). This version permanently watermarks your phone, indicating that it has been unlocked. While you can manually relock the phone, the watermark remains. But in terms of enabling typical rooting functionality, such as installing a custom recovery and flashing custom ROMs, this method will allow you to do so. Once the unlock process is complete, take a look at this thread for specific instructions on how to get a custom recovery and flash ROMs:
[GUIDE] HTC Unlock Hboot 1.50 + TWRP Recovery 1.0.3 + Root + Flash Anything!


Fixing stuff is not easy
You can use both. TWRP is just more user friendly and is preferred by most Evo 3D users over CWM. SuperUser will appear in the ROM you flash after you unlock.