Download the latest driver package from a reputable source like Hovatek or DriverMax . Extract the .zip or .7z file.
The following versions are commonly used and available through various driver databases:
Download Quectel SPRD U2S Diag Port (COM/LPT/Serial) Drivers for Windows 11, 10, 8.1, 8, or 7 - 64-bit and 32-bit - Treexy. UNISOC SPRD U2S Diag port (COM/LPT/Serial) drivers - Treexy Sprd U2s Diag Driver For Windows 10 64 Bit
Facilitates the use of diagnostic utilities for testing and repairs.
Open the folder corresponding to your 64-bit system layout (often labeled x64 or SCIU2S ) and select the .inf configuration file. Download the latest driver package from a reputable
Click and browse to the extracted driver folder.
When the numbered system parameters display, press the or F7 key to choose Disable driver signature enforcement . UNISOC SPRD U2S Diag port (COM/LPT/Serial) drivers -
Choose "Browse my computer for driver software" .
If you own a smartphone, tablet, or feature phone powered by a or Unisoc chipset, you may eventually need to connect it to a computer for flashing, debugging, or unlocking. For this to work seamlessly on Windows 10, particularly the 64-bit version, you must have the Sprd U2s Diag Driver installed.
After the PC restarts, select > Advanced options > Startup Settings > Restart .