There is an 05 in the top left corner... I do not know how long it takes to leave it unplugged before i can plug it in and it will boot, but when i first got it modded, it took about 10-30mins unplugged, and when i plugged it back it it would work properly. Now it only seems to work when i leave it unplugged for half the day. Also i have found that i used to be able to play the games i previously copied (Splinter cell CT and DOA ultimate) (dont judge me by my choice of games plz lol), the first time i tried to copy a game, it froze at the loading screen. After that the games copied well. I didnt use flashfxp to do it properly, i just used the tool on the chip to copy to the hard drive. Oh that reminds me, i also have a 120gb hdd installed now, i dont think that has any relevance because it is very new, but i might run diagnostics just in case, although the technician has found all 3 other xboxes he modded have the same problem, and i do not know their hdd situation. Back to the games, for the first day i copied them they worked like a dream when i would manage to get the xbox to start up, but a few days ago it started freezing on the loading screen. I have tried many utilities on the xbox now, including changing the dashboard but it will always freeze on the loading screen. Thank you for your ideas, i will have a look at the soldering on monday. I also noted that some people with an 'aladdin' chip or something seem to have the same problem. Just a note. Thank you.