I have a 2006 Duramax LBZ that I am having major issues with. I have attempted a full flash to install a DSP5 tune. The V2 sends an error message at 7:07 on the countdown timer. This is also at 191k of flash. I now cannot start the truck. I cannot reflash the truck. I cannot download a tune from the truck. I have rebooted by disconnecting the batteries for 15min the reconnecting and reattempting with no success.

I was able to pull a DTC from the scan tool. It is:

B2911 “Wrong Environment Identifier Received From Device 7”

Any help is appreciated!