Since the launch of the unlock boot loader site, we have received a lot of really great feedback. The Sony Ericsson Developer Program wants to continue to build on this open dialogue with external developers.
Developers and advanced users can now unlock the boot loader, which is the first step to be able to flash your own image. Now we have seen quite a few comments in different forums like the XDA forum, where developers run into problems when building their own image, and and trying to flash the image using Fastboot. With the help of our Master Software Architect, James Jacobsson, we put together a short article on how to do this.
Before moving on, we’d like to remind you again that there is no turning back when unlocking the boot loader. You may void the warranty of the phone, and you will not be able to revert the phone to a locked or original state if you unlock it.