So I send my box back for repair, friday UPS picked it up, and Tuesday it arrived at Frankfurt, MS repair centre. The really same day, some hours after it arrived, the status was allready on being sent back. So I was thinking well maybe they saw it was flashed right away when they opened it so they're sending it back again. So I was a bit nervous untill today, when it came back. And it was replaced! My thoughts are that MS just get's so much repairs that they just replace maybe 80% of it right away without looking. (Maybe just plug power in and look for RROD) So yay lucky me. Only thing I have to do now is just re-flash it. Is it easy to do by myself or should I go to a store that can do it for me?