How To Unlock Xperia Bootloader:
This video is showing Xperia Arc, but it is same for Xperia S/P/U/Sola. Read the actual tutorial carefully.
The actual tutorial:
Warning: XDA and I are not responsible if you brick your Sony Xperia during the process. Please follow the instruction exactly to minimize error.
Like this if you are FB user and you think this post is useful. The button is at top right of content of this post.
+1 this post if you are Google+ users and you think this post is useful.
Hope you will enjoy this post, subscribe to my RSS or mailing list or follow me on blogger or twitter. :)