: On Windows 10 and 11, you may need to disable Driver Signature Enforcement through the Advanced Startup menu to install unsigned SPD drivers successfully.
: Modern versions of these drivers, such as SPD Driver v1.4 , are often used as alternatives for newer Windows versions and can be found on sites like Xiaomi Tools . How to Install spd sciandroidusbdriverjungov4 link
Click and browse to the .inf file (usually SciU2S.inf ) within your extracted driver folder. Troubleshooting Tips : On Windows 10 and 11, you may
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: After connecting your phone, look for "SCI Android USB2Serial" under the Ports section to confirm the driver is active. : On Windows 10 and 11