Thx man the timing trick helped a lot and also your tip to wait 20 sec's. The 10 sec's mentioned doesn't work for me. I always got a "usb device not recognized" message.
So here we go... finally i got something
It's not working at all cause the dump procedure stops on 4-6% and or i get verification errors with diff settings. I need to play around a bit more and also to give a try on Ubuntu 11.10 with YASkeet.
But main thing it finally dumps something. A lot of FF's and here and there some strange bytes.
I've read that it would also be a good idea to solder more GND's to make the Dump/Write process more stable. We'll see if i cant get a full dump with or without verification errors i will open up the black beast and solder more GND's.
I then will do some pics with the crappy web cam. Just for sharing so others maybe get inspired.
I let you know how it goes and again THX mate.