Edl V2 ((better)) - Fastboot

Manufacturers implement ARB to prevent downgrading. If you try to flash an older firmware, you trigger a "crash dump" mode. Standard Fastboot commands fail. Because Fastboot EDL V2 operates at a lower level than the ARB check (which happens in the SBL/XBL), you can bypass the version check and force the correct firmware.

: Provides deep access to the system for partition repair and bypass operations. fastboot edl v2

An unofficial tool that manages drivers and mode switching automatically for Xiaomi phones XiaomiWiki MiFlash Tool: Manufacturers implement ARB to prevent downgrading