: Widely used for backup and firmware operations on RDA/Coolsand feature phones.
Look for RDA-USB-driver.exe or rda_driver_signed.zip within the extracted folder. Step-by-Step Installation Guide (32-Bit Windows) coolsand rda usb driver 32 bit
If you are running a 32-bit version of Windows 7, 8, 10, or even XP, a 64-bit driver will not work. The 32-bit driver ensures proper USB port emulation and stable data transmission for flashing tools. Common device IDs associated with these drivers include USB\VID_0525&PID_A4A7 or USB\VID_1E04 . Download Coolsand RDA USB Driver (32-Bit) : Widely used for backup and firmware operations
If the DPInst method does not work, you can force the installation through Device Manager: The 32-bit driver ensures proper USB port emulation
: Enables the Windows Device Manager to correctly identify the hardware as a "Coolsand UMSS USB Device" or "RDA COM Enumerator" rather than an "Unknown Device". Virtual COM Port Creation