use the 1.21 utility from the dev forum. otherwise you need to edit the sbf file before it will work in rsd.
Show some appreciation to those who have helped you by using the Thanks button!!
One Click flash back to stock for Moto Razr HD/Maxx HD Here
[Guide] Moto Razr HD/MaxxHD flash: to KK, root, unlock the bootloader, install cwm, install twrp, or revert back to JB from KK Here Are you a Noob and not sure where to post your question?
Noob friendly thread for questions about any device Here
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?