thank you much for this thread. my system was running 2.0 but stopped working for some odd reason and kept playing music only for a few minutes than shutting off and i couldnt even get to the maps without the system startup message. i first had messed up this prodecure and it only had showed a black screen but eventually got it all to work after many attempts and now it is working better then it has ever worked and saved myself 600 dollars to replace it. i appreciate these instructions very much it works brilliantly.