To re-lock the bootloader, go to > Developer options > OEM unlock and toggle on OEM unlock . Then, use the Mi Flash Unlock tool to re-lock the bootloader.
Once granted, you must still wait at least 72 hours before using the PC tool. how to unlock bootloader in xiaomi poco x3 pro new
: You need a PC (Windows is recommended), the original USB cable, and a stable internet connection. To re-lock the bootloader, go to > Developer
, you must use Xiaomi's official tool and follow a specific sequence of account binding and waiting. To re-lock the bootloader
Open command prompt and type fastboot devices . If you see a serial number, you’re good. If not, reinstall drivers.