Well, I am living in Turkey and I bought my htc hero today. It has android version 1.5. I somehow managed to download the official RUU hero 2.73 that is ROM Upgrade for HTC Hero somehow: htc support wasn't accepting my S/N at first. And then I browsed others problems with "not suitable" error. Then stumbled to a S/N, that was told that it will work. And it worked! So, will any harm come to my hero if I install this?