Hi guys, My XBOX360 don't give video when i try to turn on. My console is bricked? I can't boot into xell
If you have a nand backup from before that, you can flash this back to the 360 and it will work again. To to that you would need a usb nand flasher, you'd be required to solder this to the 360's motherboard for it to work however.
Its possible you might be able to dump the nand currently on your console and build a new hacked nand, it really depends how badly its messed up. Someone with experience could certainly have a go at fixing it.