If you attempt to install the driver normally and receive an "INF does not contain digital signature" error, follow these steps: Click > Settings > Update & Security > Recovery . Under Advanced startup , click Restart now .
Find the device marked with a yellow exclamation (often under "Other Devices" or "Ports"). Right-click and select . Sprd U2s Diag Driver For Windows 10 64 Bit
If you are using a branded device like a Lenovo or HP, you can find tailored versions on DriverIdentifier to match your specific hardware ID. Installation Guide for Windows 10 64-Bit If you attempt to install the driver normally
Always prefer for diagnostic work. For dead boot repair, you might need Preloader driver (often requires Windows 7 VM). Right-click and select
Essential functionality let down by zero signing effort from Unisoc and fragile Win10 x64 behavior. Works reliably only after jumping through security hoops. For professional use, consider a dedicated Windows 7 VM with USB passthrough instead.