Does anyone know if there are other ways to unlock the ECU that maybe the dealership cant do?

I was able to get into the dealership yesterday and they were not able to re-flash the ECU, said they never saw this before. The tech said he is going to talk to the shop foreman Monday and see if he knows anything or has seen this before. I am pondering calling Jegs to see if I can send the ...

I tried again, took the radio out, unplugged the brake controller, pulled many fuses, and hooked a battery charger up and it still did not back-up the original tune. I can't get in the Chevy dealer till Monday, so i will get a re-flash and try again then. I have no idea what other aftermarket item ...

Will it hurt anything to have a battery charger hooked up while I try and go through the process?

Are there other fuses I should look into pulling that can help? It just has a factory alarm on it, can this cause any interference?

I did pull the radio harness off of the factory harness and unplugged the trailer brake controller and still a no go.

Part#: U7180
Version: 9R10
2002 Chevrolet 2500HD 6.6 Duramax

I just bought the predator to load onto my truck and it does not make it through the original backup process, it states "error unlock -12". I tried taking out most of the fuses that could be causing an interference, i do have an ...