I haven't been around lately but today i got an update for my R1 HD. All the versions i see you all posting have me a little confused and I may not be on the right thread. I had installed with Colton's prime to non prime method and pretty much left it that way. I was boot loader unlocked but not rooted. I forget the version software i had but I think November was the last month i remembered seeing for security patch level.
I didn't noticed the update until earlier this afternoon when i was getting in my truck to go out. So I just selected install update and took off. About 20 minutes later or so the update was complete, I was a little nervous after i thought about just letting it update without doing a little reading here first but all seems ok so far, not the smartest move i have ever made.
I have custom build version
BLU_R0011UU_V21_Generic 05-05-2017 17:42
Android security patch level May 5, 2017
Android version 6.0
I ran adb after fighting with it about 20 minutes to make it find my R1 HD but finally got it connected, i then ran fastboot and it shows my bootloader is still unlocked so I am pretty happy with the update so far, I haven't had any problems except that my phone may have shut off by itself one time but I am not sure if I may have shut it off by mistake or not, so I am not freaking about it yet. I was hoping for Nougat but maybe they give it to us eventually but who knows. The phone has been working fine for me but I don't use it like a power user.