Gonna do it, any risks? As messing with boot loader can #$@% you P.S. Which recovery and any other precautions? Does it support old OS' too? Like KK and JB?
I've got it since november and it works fine with both KK and LP roms. I think there are no precautions..
but regarding 5.0/5.1 roms use TWRP 2.6.8.0