The SPRD (Spreadtrum/Unisoc) U2S Diag driver configures a specialized virtual serial communication port (COM port) on your Windows PC. This diagnostic interface gives specialized service tools deep access to the device file system and hardware layers. Primary Use Cases
Installing these drivers often requires manual steps because they are typically "legacy" or unsigned hardware drivers: sprd u2s diag com 22 drivers download exclusive
Hold the while clicking Restart in your Start Menu. The SPRD (Spreadtrum/Unisoc) U2S Diag driver configures a
[PC] ---> (USB Cable) ---> [Phone in Diag/Boot Mode] | [Device Manager] | +-----------------+-----------------+ | | [Success Status] [Failure Status] "SPRD U2S Diag (COM22)" "Unknown USB Device" No yellow warning triangle Yellow triangle or error code Power off your phone completely. Hold the and Volume Down keys simultaneously. Plug the USB cable into the PC while holding the keys. [PC] ---> (USB Cable) ---> [Phone in Diag/Boot
The latest versions (e.g., 4.21.39.134) are available through DriverMax and Outbyte .