While not fatal, soft-bricking your Android device can be a disaster. For many devices there’s no clear cut method or tool that will help you out in such a situation. While rooting and unrooting tools usually take much of the press and popularity, tools that help users get rid of soft bricks are every bit as important. The Transformer Prime now is lucky enough to have all of the above.
XDA Senior Member MasterZen88 has released a tool dubbed WSG UnBricker that helps users recover from soft bricks and, as noted by MasterZen88, should only be used as a last ditch effort if none of the other methods to fix soft bricks works. The process, which is a Windows-only .bat file with a number of helper files, is easy to use but users should definitely take care when using it so they don’t flash the wrong files at the wrong times. The tool allows users to select the function they want to use, and then users drag-and-drop the appropriate included file to flash. The flashing takes place via Fastboot, so any Prime that hopes to get fixed with this method must at least have access to that.
Please be careful as to what file you drag and drop when it prompts you
One final note do not give it a file from another device or a non .img file it will flash it anyway no matter what file you drag and drop once you press enter it flashes what ever was dragged onto the script. Also do not drag a radio img when it asks for recovery or in revers, bad things will happen Wile they are fixable by repeating the process I dont want anyone to mess up their device making such a simple mistake.
For additional information, download links and full instructions, check out the original thread._________