If your device is listed with a yellow triangle or as an "Unknown Device," you need to install the drivers manually to reach the "OK" status. 1. Pre-Installation: Disable Driver Signature Enforcement
Once your PC restarts, follow these steps to install the Spreadtrum drivers : spreadtrum sci usb2serial ok
: Click Have Disk... , then Browse to the folder where you extracted your driver files (e.g., SciU2S.inf ). If your device is listed with a yellow
Unisoc | Spreadtrum SPD drivers for Windows (SCI & USB) - Hovatek spreadtrum sci usb2serial ok