A: Unlocking the bootloader voids warranty. Locking it again does not restore warranty status.
| ROM Type | File Extension | Contains flash_all_lock.bat? | |----------|---------------|-------------------------------| | Fastboot ROM | .tgz | ✅ Yes | | Recovery ROM | .zip | ❌ No | mi flash error cannot find file flashalllockbat
—he could see it in the folder—but the software was blind to it. He started the ritual. First, the path check A: Unlocking the bootloader voids warranty
There are several reasons why you might encounter the "Cannot Find File flash_all_lock.bat" error while using the Mi Flash tool: : Ensure Windows is not hiding file extensions
If you really need to lock bootloader:
: The most frequent cause is selecting the parent folder of the firmware instead of the specific folder containing the .bat files.
: Ensure Windows is not hiding file extensions. In File Explorer, go to "View" and check "File name extensions" to verify that flash_all_lock.bat is actually present in the folder Manual Rename (Last Resort)