Is my Quark 125B dead

[Hypersprint]

I've got an E-Revo with a 4S1P 5000mah 20C, a Quark 125B and a Feigao 9xl. When I pull the throttle (partial or full does not matter) it will run very slowly for just 1 to 3 seconds and then all lights go out on the Quark. Release the throttle for several seconds and the red light will begin to flash again. I don't know if it is doing some kind of reboot but the tones only chime when the truck is first powered up.

I checked the voltage coming from the Rx and in neutral I got .5v and at full throttle I got .7v, I don't know what I should be getting but the voltage never dropped at any time so I think the Rx is ok.

Apparently there is no place to send it for repair anymore.

What do you think?

Thanks
Rob