Tг©lг©chargement Gx6605h Databasev66 Sdx - Change the upgrade type to "User DB" or "Channel List" and select the file. The .sdx file format is used to store and transfer channel lists, satellite transponder data, and radio station information between compatible receivers or PC editors. tГ©lГ©chargement GX6605H DatabaseV66 sdx Copy the .sdx file to the root directory of a FAT32-formatted USB drive. Change the upgrade type to "User DB" or HD DVB-S2 Set-Top Box Receiver with GX6605H Chip - Alibaba.com HD DVB-S2 Set-Top Box Receiver with GX6605H Chip - Alibaba Plug the drive into your receiver and navigate to Menu > Setting > Software Upgrade (or USB Upgrade ). If your receiver has a brand name (e.g., Starsat, Tiger, Geant), check their official "Download" or "Software" sections. Because these files are specific to regional satellite configurations (e.g., Nilesat, Hotbird, Astra), they are primarily found on enthusiast forums and manufacturer support pages: