Never say never. According to a blog post yesterday by DirtyDroidX, Dan Rosenberg (a.k.a. @djrbliss) has successfully managed to do what many before him have tried to do but failed — and that is unlock the bootloader of a Motorola smartphone. For quite a while now, at least since the Droid RAZR was released, Moto bootloaders have been locked down tight, which has made development more complex for these devices. Just glancing at the XDA threads for the RAZR HD and RAZR M will tell you that much. Workarounds like installing the SafeStrap recovery are required in order to flash ROMs onto those devices.
However, with Dan’s bootloader unlock method this should now be a thing of the past. News of this method first came out yesterday, and now earlier today he has made his unlock tool and instructions public. However, this method will only work on devices with the new Qualcomm Snapdragon processors, and as of now that list includes the Droid RAZR HD, RAZR Maxx HD, RAZR M and the Atrix HD. So unfortunately all devices with the older OMAP processors, such as the original Droid RAZR, will be left out in the cold.
The usual disclaimer applies: you have to be willing to take responsibility for your own actions and device, and if this tool somehow ends up bricking your device, it is in no way the dev’s fault. Also, for this to work you already need your device to be rooted and have the su binaries (superuser, SuperSU or ClockworkMod’s open-source superuser) installed on it. If you feel you are up to the challenge, hit up the first source link below for the full list of instructions and FAQ’s, and the second one for a more detailed explanation of the process. As always, if you have any other questions feel free to ask in the comments section below.