ADB acts as a client-server bridge. On Xiaomi devices, it is used for log analysis, installing non-store applications, and managing system permissions.

To flash an official Xiaomi Fastboot ROM ( .tgz file extension) via Fastboot:

This paper provides a detailed technical overview of the Android Debug Bridge (ADB) and Fastboot protocols as implemented on Xiaomi devices (including sub-brands Redmi and POCO). It explores the specific security architectures employed by Xiaomi, such as the Anti-Rollback (ARB) mechanism and MIUI optimization layers. The document serves as a practical guide for debugging, flashing firmware, and recovering devices, while highlighting critical safety protocols to prevent permanent device bricking.

Unlike Google Pixel devices, Xiaomi requires a waiting period to unlock the bootloader.

Before executing commands, the host environment must be correctly configured.

Currently, there is no official ADB command to check the ARB index. It requires checking the firmware files (typically an anti flag inside the flashfile.xml of a Fastboot ROM) or checking the Xiaomi community forums for the specific model's ARB version history.