Help with Windows 6.1 update please

[doylecm]

There are a couple of updating/flashing guides at the top of the HTC Titan Upgrades section that should give you a decent grasp of how to do it and the rest is trial and error. I recommend Olipro 2.40 bootloader and the Official WM 6.1 ROM is out so you can try flashing that before working with custom roms.