I rooted my droid x right out of the box, and I never even thought about checking the firmware version, which it turns out is 2.1 update1. I tried to install the 2.3.15 update, but during the installation it went from the normal "updating" icon (an open box with an android character) to an error icon. The phone then rebooted with about 30% of the update completed. I checked the status in the settings, and it said" update failed!" I've searched threads, and I haven't found any case exactly like mine. Could someone point me toward a relevant thread or tell me how I screwed up?