Step 1: Disable Driver Signature Enforcement (Recommended for Windows 10/11)
Try Different Ports: USB 2.0 ports are generally more stable for flashing SC6531E chips than USB 3.0 or 3.1 ports.
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bcdedit /set testsigning on
Open and expand the Ports (COM & LPT) section. Turn off the phone. Hold the boot key and connect the USB cable. Turn off the phone
| Problem | Possible Cause | Solution | |---------|----------------|----------| | Driver not installing | Signature enforcement | Disable enforcement + retry | | COM port not detected | Wrong device mode | Enter download mode correctly | | Code 10 error | Driver conflict | Uninstall old SPD/Sprd drivers, reboot | | Device disconnects quickly | USB cable or power | Use short USB 2.0 port + good cable | | Not appearing in Device Manager | Missing test point connection | Use proper test point or flash adapter |
In Device Manager, expand . You should see: You should see: A complete SC6531E driver package
A complete SC6531E driver package typically includes three distinct drivers: