Hi, I have exactly the same problem, as was shown in the movie.

The defective screen has been replaced by Nokia and yet they have flashed my device.

After that I installed the backup from Nokia Suite and also the whole apps again and then I wanted to re-activate the developer mode. Now happened exactly the same as shown in the movie. My problem is that I have absolutely no terminal, so I also can not enter the commands, which are here proposed.

Please tell me if there is a way to re-activate the developer-mode, without having to do a complete flash, because I really don’t want to do all the work again.