I have owned several xbox 360 consoles since they were released. Some have been replaced due to malfunctions, others due to wanting a newer model. I have one 250gb Elite (Fat Version) and one 60gb Pro. I used the 60gb Pro for a little while and then a friend bought it from me. After a year or so they decided to go out and get a PS3 (no idea why) and gave me the Xbox back. I started to configure the xbox so I could put my vast library of DLC and Arcade games on it so I could play them at another location without removing the hard drive from my main machine. After moving my profile on a USB memory stick from the Pro to the Elite, my profile came up as corrupted. I looked around on Google and found that it could mean my console is flagged or possibly even banned. The forum suggested the use of a program called xVal to check the status of the console. I found that it had failed an AP2.5 check and was technically flagged for Live Banning. It seems like my 'friend' flashed it and then gave it back once it was useless to him. I updated to the newest dashboard which I am led to believe reflashes your drive, so it is technically no longer a flashed, pirate xbox.
My main question, after the wall o' text background story, is can I send my xbox for repair to Microsoft? It has an E74 error but I don't want to be held accountable for it being flashed and lose my second xbox. Any help would be greatly appreciated!!