I was trying to root my refurb 1.5 that I just got yesterday. And thinking that I was putting the root file on my phone, the one that I downloaded from the instructions and placed it on my sd card, I did the volume down+power button to get to hboot screen. It said upgrade and I pressed yes, not realizing that it was the 2.1 upgrade it wanted me to do and not root. Now I'm on 2.1, which I did not want....craptastic!