Valley runner tunes corrupted

Just flashed a new file from VR and now my truck won’t shift out of first and vftuner software can’t read my vin to reflash. Not sure what to do but just a heads up to anyone t

 

What is your history with VR? Have you flashed other tunes yourself? I have no answers but have a VR tune on the truck going on 3 years. Is @Grossomotto still here? Maybe he can provide some input as he flashed my truck and rep'ed VR.

 

I had a 20 minute phone call with Jeff from VR discussing the issue and he is sending me a new ECU and i will be sending him mine to diagnose the problem. Lots of possibilities but the current guess is a voltage drop. Il post updates as we learn more.