My question: How can I be sure that no trace of rooting is left behind on my HTC Hero? The phone still has warranty left. Modelnumber: HTC Hero Firmwareversion: 1.5 Smallbandversion: 63.18.55.06EU_6.35.06.18 Kernel-version: 2.6.27-8dd6deee, htc-kernel@and18-2 ) Build number: 2.73.405.5 146733 CL#61267 release-keys Softwareversion: 1.0.0.A6288 I got it from some guy on the internet. The phone was rooted back then. Something like VillainRom, with firmware 1.5. So, I installed a *I suppose original* 1.5 HTC ROM, that worked. Then I did the EVO 2.1 update. After a few weeks I installed 1.5 again (because I wanted to try if my problems (a very low volume while calling, for which I'm claiming warranty) would disappear with 1.5. But... I don't know for sure that the phone has been reverted to its original state. I want to be sure about it, because I don't want to get a repairbill from HTC. The HTC guy said that it's impossible to go back from 2.1 to 1.5, so the device must have been customized. I replied that I installed the original HTC ROM (of which I'm not sure by the way), but he repeated that you simply cannot *legally* revert from 2.1 to 1.5. Guys, please help me. How can I make my HTC Hero stocklike, with 1.5 or 2.1?