theft lock on navi ?

[Blackburban09]

i just bought a navi for my suburban and it says theft lock on the screeen any idea why ? it does not work it works in the car i bought it from but not mine any input ?

 

[OklabyGodhoma]

From your previous post it appears you went ahead and installed. You are going to have the Tech II computer in your vehicle flashed by the stealership but before you spend the money read my post to your previous question.