: This occurs when the USB connection filter is dropped. Reinstall the LibUSB filter drivers and ensure the data cable is plugged into a motherboard USB 2.0 port rather than a front panel port.
This article provides a deep dive into what the MTK AUTH Bypass Tool V11 is, how it works, and how to use it safely. What is the MTK AUTH Bypass Tool Version 11? : This occurs when the USB connection filter is dropped