Alrite I'm new to efi so I'm learning as I go. But here is my problem. I read stock tune and converted to to dsp os using v7.5 now when trying to flash in my dsp5 tune on v8 I'm getting a no data recieved error. Truck will not even attemp to start. So I tried flashing stock tune back in on v7.5 and am getting no connection error. Any help is greatly appreciated been trying to get this thing flashed for 3 days now.