As a final resort, you can bypass the Mi Flash Tool entirely and use the script directly. This confirms the script is present and working.
At the bottom of the Mi Flash Tool, you will see three options: (runs flash_all.bat ) save user data (runs flash_all_except_data_storage.bat ) clean all and lock (runs flash_all_lock.bat ) mi flash error cannot find file flashalllockbat
Check if flash_all_lock.bat is present. If it is, the problem is likely your folder path. As a final resort, you can bypass the
Even if you have the correct Fastboot ROM, you might not have extracted it properly. The .tgz file is an archive that needs to be unzipped. However, sometimes this archive contains another archive inside, often a .tar file. You must extract the contents fully until you see a folder with the images folder and all the .bat script files. Using an extraction tool like 7-Zip or WinRAR is essential, as Windows' built-in tools can sometimes fail to extract these archives correctly. If it is, the problem is likely your folder path
(not a Recovery ROM) and placed it in a simple directory like without spaces in the folder name Understanding the Error
The flash_all_lock.bat file is a critical component of the Mi Flash tool, responsible for locking the bootloader, flashing the firmware, and performing other essential tasks.
Flashes all partitions and locks the bootloader (default).