This is normal security behavior indicating you must wait out the requested hourly cooldown period.
In this 2,500+ word guide, we will dissect everything you need to know: what the official tool is, how to use it, the risks of unofficial "deep flash" tools, and why your Snapdragon chip is the key to the kingdom. xiaomi snapdragon bootloader unlock tool
Most users will see a message saying "Couldn't unlock. Please unlock after 168 hours." This is a mandatory 7-day security wait. Do not log out of your Mi Account during this time, or the timer may reset. Risks and Responsibilities This is normal security behavior indicating you must
Installing unsupported third-party ROMs after unlocking can lead to many issues. These range from minor bugs to critical system failures. Some phones might have proprietary hardware (like camera sensors or high-refresh-rate displays) that is not fully supported by generic custom ROMs, leading to poor performance or missing features. Moreover, some hardware-level security features (like those similar to Samsung's Knox) can be permanently damaged, with the only remedy being a motherboard replacement. Please unlock after 168 hours