Maybe, are you talking about an update or did you replaced the engine controller with a new or used one? If it is a new computer and you program it with the jbox you MAY not be able to do the required coding with the tablet. If the car is older than 2004 you most likely will not be able to program it with the jbox anyway.
That is why people want to know make, model, and year before they will answer any questions. Your best bet is sending it to somebody with a Tech II or MDI.