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Unlock Tool 2026 – SPD Spreadtrum 77xx & SPRD NPI USB 1.4 Drivers | Download
The SPRD NPI USB 1.4 driver is what lets a PC connect to Spreadtrum (SPD) phones. When you plug a Spreadtrum 77xx phone into the PC in flash mode, Windows doesn’t recognize it, and this driver is what makes that recognition work. Without it, neither Unlock Tool nor the Spreadtrum Flash Tool will see the phone. NPI means this is the newer driver package, with all the required components bundled together. If you work on the 77xx series or any SPD/Unisoc phone, you need this driver on your PC.
Download Drivers
The SPRD NPI USB 1.4 driver is what lets a PC connect to Spreadtrum (SPD) phones. When you plug a Spreadtrum 77xx phone into the PC in flash mode, Windows doesn’t recognize it, and this driver is what makes that recognition work. Without it, neither Unlock Tool nor the Spreadtrum Flash Tool will see the phone. NPI means this is the newer driver package, with all the required components bundled together. If you work on the 77xx series or any SPD/Unisoc phone, you need this driver on your PC.
Download Drivers