Spreadtrum Diagnostic Port Driver, USB\VID_1782&PID_4D00, SCI U2S Diag driver, SPRD U2S Diag Windows 10 64-bit.
Enabling Diagnostic & Firmware Access for Unisoc Devices Sprd U2s Diag Driver For Windows 10 64 Bit
: It is essential for using tools like the SPD Upgrade Tool to flash stock ROMs, unbrick devices, or perform software updates. Spreadtrum Diagnostic Port Driver
Many websites offer this driver, but some bundle malware. Only download from trusted sources: SCI U2S Diag driver