Ok I have a xbox with an x2 pro chip. long story short I was flashing a bios in evox dash and powered off before it was finished. After that the xbox did nothing on boot. Now it will turn on, display the xbox logo then go to the "your xbox requires service" screen giving a code 5 with game in the drive and 16 with no disk. any ideas or suggestions would be much appreciated as i'm pretty sure it is a bios problem but I am lost as to how to fix this.