You can try and revive your receiver by getting minor help here. As to what will happen to your service if you buy another unit is for you to sort out with your service provider.
I tried everything, I have lil basic knowledge of any circuit board. There is respective voltage everywhere in PCB(circuit) except there is no picture and no red light in front. just a green light.
I dont know if anybody on this forum is familliar with the hardware inside Nano-2, who can help me.