I used this ROM: ViperS 5.2.1 on my HTC Sensation XE and now, I want to install Cyanogenmod 12.1 unofficial ROM, but I cannot. I flashed TWRP Recovery and flashed the ROM, but it stucks in Bootloop. What do I need to do? I can install this rom with no problems again. My Firmware is also 3.33. ... S-On Rooted Unlocked