Did you also try 0x07, 0xAE, 0x2a, 0x80 from tjshadyluver? I’m not sure if what he has is worth going after because of the first byte error in what he posted. Thanks for the replies so far guys.
Cant beleive th3magpi3figures it out and just leave ya hanging
You have to send 0x07, 0xAE, 0x2a, 0x80 multiple times you will get a 31 error every time until it accepts it with a 78. If any one needs programming our company can do it. NavRepair.com and Infotainment.com we have bench setups for all gm units 2007-2019. I am trying to crack the IOB seed key. Also the new 18-19 radios have same seed key as the IOBs. Pain in my ass!!!