While most modern computers run on 64-bit architecture, there is still a significant user base relying on older hardware. You need the 32-bit (x86) version of this driver if:
Many driver download sites bundle adware or malware with legacy drivers. Only download the coolsand rda usb driver 32 bit package from:
Always scan the .sys and .exe files with VirusTotal before installation. coolsand rda usb driver 32 bit
Restart your PC. While booting, press F8 (before the Windows logo). Select: "Disable Driver Signature Enforcement" from the boot menu. Note: On Windows XP, you can skip this step.
In the era of feature phones and early smartphones (approximately 2010–2016), Coolsand (later acquired by RDA Microelectronics) was a dominant manufacturer of chipsets used in budget mobile devices. These chips were commonly found in "Chinese" feature phones, clone devices, and various keypad phones. While most modern computers run on 64-bit architecture,
To connect these devices to a Windows computer for maintenance, flashing, or unlocking, a specific driver known as the Coolsand RDA USB Driver is required. This write-up covers the technical details, installation process, and usage of the 32-bit version of this driver.
Even if you try to use compatibility mode or disable driver signing on a 64-bit OS (via bcdedit /set testsigning on), the driver’s 32-bit architecture will fail to load. The USB stack expects a 64-bit driver binary; the Coolsand driver does not provide one. Always scan the
Critical Takeaway: To use the Coolsand RDA USB driver, you must use a 32-bit version of Windows 7, Windows 8, Windows 10 (32-bit), or Windows XP.
Since Windows 7 32-bit is the most stable platform for this driver, we will focus on that. Note: Windows 10 32-bit works with driver signature enforcement disabled, but Windows 7 is recommended.