My utility does exactly what is required in order to activate your phone on 6.12.173. NOT flashing Motorola's emstorage.img leads to many not being able to activate their phones.There is a reason this was included and does this from the 6.12.173 RSD Lite fastboot files.
But don't complain if your phone won't activate at the end of the fastboot. I added a "warning" to the OP however for those who don't understand what the full restore does, which is apparently many lol
For the questions about formatting, what this does is flash "emstorage.img" and will NEVER touch the external SD card. Feel free to remove the line that says
Matt, I'm not disagreeing with you at all, not the least. Without your easy-to-use utility, a lot of people would never try these leaks to begin with. I was just surprised to find that my pics, downloads, and other app configuration backups (Apex, Tasker, TiBu) all wiped out with 1.51 and not 1.42. No big deal, I just moved those backups elsewhere.