I read a post on the 1st may which a guy had my exact problem with a V1.6. I flashed X3 3294 and now the xbox powers up then off again. unfortunately his chip had the Xapter which was the cause of his problem...I do not have this. I have network flashed on both on on off off off and off on off off off. My only way of getting back to the flash screen is by pressing both eject and power buttons. Can someone please help me. I am very very sure my soldering is OK and have checked it 3 times. Should I try another bios???