I have the HTC DHD and I just want root access on my current ROM. I'm running the stock Sense 3.0 Android 2.3.5. I have considered using the aahk for this job but I think there is no way to backup my current ROM before downgrading. I will be flashing other ROMs once I have root so i need a S-OFF as well. I just need a copy of my current ROM because my phone is still under warranty and I want to have the ability to unroot it and return it to it's former state if I ever need to. I know that the aahk is the way to go, I just don't know how to make the backup of my current ROM before the downgrade.