RDA Coolsand chipsets are commonly found in:

You might ask: Why can’t I just install the 64-bit version? The blunt answer is that for most Coolsand/RDA devices, an official 64-bit driver does not exist. Here is why the version remains essential:

| Source | File Name | Version | Compatibility | Size | |--------|-----------|---------|---------------|------| | GSMxBlog | Coolsand_RDA_RDA_FP-v1.2.6.0.zip | v1.2.6.0 | Win 7/10/11 (32/64-bit) | 724 KB | | MyUSBDrivers | rda-driver-v1.2-signed.zip | v1.2 | Win 7/8/8.1/10/11 (32/64-bit) | 13 MB | | GSmusbdriver | RDA_Driver_v1.2.zip | v1.2 | Win XP/Vista/7/8/8.1/10 | ~10 MB | | CFirmware | Coolsand USB Drivers (2).rar | — | Windows (32/64-bit) | 268 KB |

Hold the specific key combination on your phone/device to enter or Download Mode .

The driver creates a virtual COM port. You can now use flashing tools like:

Technicians often run 32-bit Windows virtual machines on modern hardware to maintain driver compatibility. This approach allows them to use legacy tools without sacrificing the benefits of a current operating system.

Right-click on the Start Menu button (Windows 10/11) or go to Control Panel → System → Device Manager (Windows XP/7).

If you absolutely cannot access a 32-bit PC, consider these alternatives:

You can typically install the driver using an automated installer or by manually updating the device in your system settings. Method 1: Using the Installer (.exe)