Download the .rar package containing the loader and the software. Extract the files to a folder on your desktop.
You should see a progress bar indicating the data is being transferred. Tutorials on YouTube show that this typically takes a few minutes. Download the
Always back up your current channel list to a USB drive before performing a full software flash, as this process will wipe all user settings. Tutorials on YouTube show that this typically takes
Once the loader displays "Completed" or "100%", wait for the receiver to reboot itself. Do not power off the device during the writing stage (80%–100%) to avoid "bricking" the unit. 3. Troubleshooting Tips Do not power off the device during the
Connect the RS232 cable to your PC and the receiver. Ensure the receiver is powered off at the back switch or unplugged. Loader Setup: Open the GX6605S_Loader.exe . Set the COM Port to match your PC (usually COM1 or COM3). Set the Mode to "SerialDown".
A DB9-to-mini-jack or DB9-to-DB9 cable (depending on your specific Prefix model's port) to connect the receiver to your PC. 2. Step-by-Step Installation Guide
This usually means the COM port is wrong or the RS232 cable is loose.