Yes, you can upgrade the radar software now. You will need the NN3D uploader software for the DRS. Under the DRS model (DRS4D) number on our website, you will find the instructions and software for each system type (NN3D, TZT, TZT2). The TZT and TZT2 use the same software file (different instructions). You need to get the NN3D uploader instructions and uploader software. I notice the uploader software is not posted, so I will ask that it be done. It should show up in the next 24 hours.