I also have a question relatively similar to this and would love help!! I kinda got screwed by someone. Im pretty decent and handy modding but in this instance past my expertise i bought a 2 tb origins modded xbox from a guy who does them alot and sells them and when i got it everything works great BUT everytime i do the L+R+Back+Black to reset when i wanna change games it acts like everythings gonna load up like when i start it but than i get 07 error code....its only when i do that reset. If i power off and back on again it works fine...ive messaged the guy hed told me it mighta been something with the bios hed forgotten to do but now he wont ever respond to me....any help would be greatly appreciated as i paid over 200 bucks for this and this is kinda a very annoying problem...