Just got a DSP5 tune for my LBZ Duramax and updated my EFI software from V7.5 to V8. I tried to read my V2 from the F5:BBX box and it says "Error $0109: Received data message contained unknown command group". I get the same message when I try to do a full-flash. I have the truck plugged in and have the key in the run position.
It says that I have the 2.07.04 Boot block version and the 2.07.35 Firmware versions on my V2 and does connect to the V2 but am in dead pole mode.
I try to install the firmware on my EFI explorer, and it gives me a message that I am not in deadpoll mode even though the two orange lights are alternatively blinking.
What did I do wrong? I also did not have my V2 hooked up to my PC when I updated the Firmware and Boot Block which is maybe where i messed up? I also tried uninstalling and reinstalled both the V7.5 and V8 software on my PC