Xbox flash green and red no AV output :'(

[Porske]

Hi,
this is my first post in this forum, i have a lot of experience in Playstation 2, original xbox is totally a new world for me.
Some times ago i receive 3 Xbox from a family relative, I repaired 2 ones (and now are chipped and fully working) but the most beautiful have some problems ? there is no way to get video output to work.
When I switch on the Xbox it's reboot 2 times and start flashing green and red, if i try to open the DVD drive I can hear the motor spinning, the HDD led flash but nothing happened.
If I disable Xecuter chip (long press power button) the console stay on (no reboots) with green led on "normally" and if i try to open the DVD start green flashing continuously.

I make a short video with some test

I also completely unplug the chip and power on the console without HDD and DVD, but noting changed.
There are some pictures

> Pictures

Someone can help me? I have dead motherboard?

Thanks!!

 

[Porske]

Hi guys,
some time has past, i made other video showing my progress

motherboard swap

PCB rebuild and switch bank tests

To answer my question:

• yes the motherboard is dead
• my Xecuter have corrupted banks and backup.

Now i bought another Xecuter X3 CE chip

In the next video i will try to hotswap flash broken Xecuter cross your finger and stay tuned