The error "cannot find file flash_all_lock.bat" in the Mi Flash Tool occurs when the utility attempts to execute a script that is missing from the directory you have selected. This script is specifically responsible for flashing the firmware and subsequently relocking the bootloader. Common Causes
Right-click MiFlash.exe → Run as administrator. This ensures the tool has permission to execute batch scripts. mi flash error cannot find file flashalllockbat
Cannot find file flashalllock.bat (or The system cannot find the file specified).To resolve this, simplify your file path, ensure you've extracted the .tgz file fully using a tool like 7-Zip, and point the Mi Flash Tool to the main directory containing the scripts. The error "cannot find file flash_all_lock