@mlinke
Provided you've done everything correctly, that error message from Updater.exe indicates possible physical damage of the device internal memory in which case it may be 'hard-bricked' and not recoverable by software methods.

There are some things we can try however in case it is simply soft-bricked. Please give a full account of your actions so far and the history of how it bricked and the symptoms. Read this please before you reply: [Only registered and activated users can see links. ]