Because you are bypassing the Mi Account server entirely,
This method works on 99% of Snapdragon 660, 662, 665, 710, 730, 845, 855, 860, and 870 devices. (Examples: Poco X3 Pro, Redmi Note 10 Pro, Mi 9T Pro, Poco F3). unlock bootloader xiaomi without waiting snapdragon
A: Yes. You will see a warning screen every time you boot for 5 seconds. This is normal for unlocked phones. Because you are bypassing the Mi Account server