Failed -remote 39-flashing Lock Flag Is Locked. Please Unlock It First 39-- Today

devices often require using the official Mi Unlock Tool after a waiting period linked to your Mi account. Why is this happening? Security Protection

: Ensure you are in the actual "Bootloader" or "Fastboot" mode, not "Fastbootd" (userspace). You can try running: adb reboot bootloader devices often require using the official Mi Unlock