: The computer has recognized the device in "Download Mode" or "Boot Mode" and the SCI (Spreadtrum Communication Interface) driver is working correctly [2, 3]. Ready to Flash
Click .
: If you are on Windows 10/11, you may need to disable Driver Signature Enforcement to ensure the SCI driver functions correctly.
Power off the device completely, remove and reinsert the battery (if removable), and try a different key combination. Best Practices for Secure Flashing Operations spreadtrum sci usb2serial ok
The automatic installer may not work correctly. The most reliable method is a manual installation through Windows Device Manager.
: Supports tools used to write or restore IMEI numbers on SPD devices . Driver Details & Compatibility Manufacturer : Spreadtrum (now Unisoc) .
The Spreadtrum SCI USB2Serial driver offers several benefits to users, including: : The computer has recognized the device in
Modern Windows versions block the installation of unsigned or older legacy drivers by default. You must temporarily disable this security feature to install Spreadtrum drivers successfully.
The "SCI" in Spreadtrum SCI stands for (now known as Unisoc). When you connect a Spreadtrum device in flashing mode (usually by holding a boot key while inserting the USB cable), the computer detects a specific hardware ID. The connection fails for three primary reasons:
Always use a high-quality data-sync USB cable. Avoid charging-only cables. Power off the device completely, remove and reinsert
You need to obtain the driver files first. Search for the latest version of the "SPD Driver" or "Spreadtrum SCI USB2Serial Driver". Reputable sources include forum, GSM-Forum , or the official support pages of your device's manufacturer (e.g., Itel, Tecno, Infinix). The package is typically a ZIP file containing subfolders for 32-bit (x86) and 64-bit (x64) versions of Windows.
Watch Device Manager closely. A new entry will briefly appear under "Other Devices" or "Ports (COM & LPT)".
