Can I use PRO/Ultimate subscription activation code with another OBDeleven device? 


PRO/Ultimate subscription activation code is needed to activate the PRO/Ultimate subscription functions in the user account. It means that the code is assigned to the one, unique user account and don't have an effect on any OBDeleven devices. If you have lost your device, you can buy a new one without PRO/Ultimate subscription license and use it with your existing account on which PRO/Ultimate subscription license is activated.