I try to run the sandbox it tries to call the serial number of the old Kinect.
That should not happen; the AR Sandbox code only refers to the Kinect camera by index, not by serial number. What is the exact message you are getting?
The issue is more likely that you don’t have a calibration data file for the new camera. You need to run
sudo KinectUtil getCalib 0
which was broken in version 4.1 of the Kinect package. I just released version 4.2 with a fix; if you used PullPackage to get the software, simply re-run
PullPackage Kinect
to install it.