First of all, thank you for answering! My xbox 360 kinect 250 GB Go, is not hacked, never been opened, it has the seal, played only original games, never went online with it (LIVE or conected to the internet), played it on weekends for no more then eight hours...brand new despite his 4 years. My problem with the xbox is that it freeziz on loading some games, not all of them. I never did an update on my xbox, didn't knew it needed such a thing. I understood that I need to do this update, so I downloaded on to a memory stick the update using the tutorial on youtube, with the dashboard,but nothing happened. I inserted the stick in the usb and nothing happened, unlike the tutorial where automaticlly it updates. Freezing, that's my problem, bought it brand new, worked lovely till now. Please help me to understand what to do!