I bought a used and already modded Xbox about six months ago. A while ago it started suddenly not working, it would start up as normal with a solid green light but after a while flash red and green. At some other times it would even turn itself on and off 2 times and the 3rd time stay on while flashing red. If I let it sit for a while or even shaking it lightly it would sometimes work again. Now it won't work at all.
As a TOTAL newbie I opened my Xbox and found a modchip with SST on it. I read a little on the net and found out a little about it. It is soldered to D0 (Xbox v1.0) and the LPC bus is connected via solderless contact points. I have tried cleaning the contact points and adjusting the position of the modchip. Depending on how well the pins are aligned to the LPC contact points I get either one of the two abovementioned error light codes.
I don't GET ANYTHING showing up on my TV. No video whatsoever. I just tried turning OFF my modchip and now I can hear some audio playing while starting up but no video now either.
Any ideas? Please help? I'm really lost here...