: Using USB 3.0 or 3.1 ports can sometimes cause compatibility issues; USB 2.0 is generally more stable for Fastboot.
The is a communication problem, not a fatal ROM error. In 85% of cases, swapping to a USB 2.0 port and a genuine short cable eliminates the error instantly. If you are dealing with a newer Xiaomi device (post-2020), you must grapple with Xiaomi's EDL authorization locks—either by using deep-test cables or paid unlocking services.
If timeout occurs every time, possible eMMC / UFS corruption or bad block . In that case: