Re‑install it using the manual method. Also disable “Automatically download manufacturers’ apps and custom icons available for devices” in System Properties → Hardware → Device Installation Settings.
When you connect a Spreadtrum device to a PC in diagnostic mode, the computer assigns it a virtual serial communication port (COM port). The U2S (USB-to-Serial) Diag driver translates the data format, creating a stable bridge labeled as "SPRD U2S Diag (COMxx)" inside your device manager. Why You Need This Driver
: Ensure your flashing tool (like SPD Upgrade Tool) is open, configured, and has its "Download" button active before plugging the phone into the USB slot. Port Conflicts (Forcing COM22) sprd u2s diag com 22 drivers download exclusive
Hold the key while clicking Restart in your Start Menu.
Are you struggling to connect your SpreadTrum (SPRD) device to your computer? Does your device show up as an "Unknown Device" or fail to enter Diag mode? If you are looking for the , you have landed on the exclusive resource to get your device recognized and ready for advanced servicing. Re‑install it using the manual method
If your servicing tool strictly requires but Windows assigns a different number (e.g., COM6 or COM12):
Using diagnostic ports like SPRD U2S Diag gives you low‑level hardware access. This power comes with responsibilities: The U2S (USB-to-Serial) Diag driver translates the data
In the world of mobile repair, firmware flashing, and chipset diagnostics, Spreadtrum (SPRD) powered devices are common in budget-friendly smartphones, tablets, and feature phones. However, when connecting these devices to a Windows PC for advanced tasks, users often encounter the dreaded or similar errors in the Device Manager.
Hovatek also maintains a separate thread for the with version numbers like 4.20.42.134, which are often referred to as “exclusive” releases for Windows 10/11.