Because older RDA chipsets lack modern digital signatures, Windows 10 and Windows 11 users must take a specific preparatory step before starting the installation. Step 1: Disable Driver Signature Enforcement
Unload and reload the option module:
Modern Windows environments require all drivers to be digitally signed by Microsoft. Because older legacy chips like the Gallite 8809 use older certificates, Windows may block the setup. rda usb driver for gallite 8809
When you connect an RDA 8809 device to a PC, the Windows operating system searches for specific hardware identification tags to pair it with the correct software. According to databases like DriverIdentifier , the official hardware strings for this chipset are: USB\VID_1E04&PID_0900 USB\CLASS_FF&SUBCLASS_66&PROT_66 USB\CLASS_FF&SUBCLASS_66
Once installed, the device should appear as a COM Port (e.g., "RDA COM Enumerator") in the Device Manager. Troubleshooting Common Issues Because older RDA chipsets lack modern digital signatures,
Right-click on RDA-USB-driver.exe and choose .
Search for a trusted repository to download the (often compressed as a .zip or .rar file). Ensure the package includes files named rda_usb_driver.inf or an automated executable like Install32.exe / Install64.exe . Step 2: Extract the Files Right-click the downloaded archive. Select Extract All or use a tool like WinRAR/7-Zip. Place the extracted folder on your Desktop for easy access. Step 3: Install via Device Manager (Manual Method) When you connect an RDA 8809 device to
Look for a yellow exclamation mark under Other Devices , typically labeled or Unknown Device . Right-click the unknown device and select Update driver . Choose Browse my computer for drivers .
: Modern Windows versions (Windows 10 and 11) block unsigned legacy drivers by default.
Locate the device (often listed under "Other devices" as "Coolsand" or "RDA"). Right-click and select "Update Driver Software" "Browse my computer for driver software"
Click , navigate to your extracted folder, select the folder matching your OS architecture (x86 for 32-bit, x64 for 64-bit), and click Next .