Hmmmm I don't know man, I wish I did. I have the V.3 and everything has been working flawlessly since the install. I'll look into it further for you! Just take a look at the pics and descriptions of the correct switch settings in the instructions to verify they are set right since tey are a little different than the V.3 settings. I see they have a "vehicle setting" now, mine doesnt, it only has 5 switches and the only switches turned down are the "2 and 3" ones. According to Coastaltech thats the default setting from them to enable all Lockpick settings and to have the unit functioning properly, rememeber for V.3. It could be just a bad Lockpick adapter.