As well know, this SDP3 software cannot be updated online, new software is provided by U stick. When you install the software for SDP3 Scania, you meet error prompt like "The software in VCI is not the latest version, click OK to install new VCI software", how to do? 

When you install the software for Step 7 (setup 7), do not copy SMAPI.dll file to the installation dictionary of Disk C first. For other file please copy and replace “SCOMM_SSK.dat” and “SCOMM_SSK_HL.dll”, then connect the SDP3 with PC and your vehicles, then open this software and test. 

If your laptop prompt you update, then copy and replace SMAPI.dll.