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 )
The phone is booted into Fastboot Mode (showing the Mi Bunny or "FASTBOOT" text) and connected via a reliable USB cable (preferably a USB 2.0 port).
“I tried to flash my Redmi Note 10 Pro (sweet) from MIUI 13 to 14. Mi Flash Tool kept saying ‘cannot find file flash_all_lock.bat’. I downloaded three times from different sites. Finally, I opened the ROM folder and saw that ‘flash_all_lock.bat’ was not there. I copied it from an old MIUI 12 ROM for the same device. The flash worked, but my phone entered a bootloop because anti-rollback was triggered. I had to reflash with ‘clean all’ mode to recover.”
How to Fix the Mi Flash Tool "Cannot Find File flash_all_lock.bat" Error mi flash error cannot find file flashalllockbat
Official Xiaomi USB Drivers are fully installed on your Windows PC.
: The tool sometimes fails if the path to your ROM folder contains spaces, special characters, or is too long. How to Fix the Error
The "cannot find file flash_all_lock.bat" error in the Mi Flash Tool is a common but solvable issue. By methodically working through the steps in this guide—from verifying your ROM and path to using alternative flashing methods—you can identify and fix the root cause. Always double-check your device model, ROM type, and file paths before proceeding with the flash. At the bottom of the Mi Flash Tool,
The Fastboot ROM (which comes as a .tgz or .tar file) was not fully extracted, or the specific script was deleted/moved. Step-by-Step Solutions 1. Verify the Directory Path
: You might have downloaded a Recovery ROM (usually a .zip file) instead of a Fastboot ROM (usually a .tgz or .tar file). Script files like flash_all_lock.bat only exist in Fastboot ROMs.
Let’s go from simplest to most advanced solutions. I downloaded three times from different sites
Look at the bottom right corner of the Mi Flash Tool window. Change the selection from to Clean all . Click Refresh and then click Flash .
I’ve downloaded the fastboot ROM, extracted it, and pointed Mi Flash to the folder, but it still says the file is missing. Has anyone else faced this?