I rooted awhile back using HTC's HBOOT 1.5 method, but never got the opportunity to install a custom ROM. While browsing last night, I came across MeanROM and said "I need to have this". Unfortunately, I'm stuck on 651.2 with the associated older firmware. I tried taking HTC's OTA figuring I would just need to re-root, but it kept erroring. Do I need to unroot to apply the update?