Whether the Redmi 5 can use the MIUI 12 system depends on its hardware configuration and Xiaomi's official adaptation plan. MIUI 12 is a customized operating system developed by Xiaomi based on the Android system, and its updates and support usually depend on Xiaomi's adaptation plan and hardware compatibility.
Redmi 5 was released in 2018, and according to Xiaomi's adaptation plan, this model may not receive official support from MIUI 12. Therefore, Redmi 5 users may not be able to upgrade directly to the MIUI 12 system.
If Redmi 5 users still want to experience the features and functions of MIUI 12, they can try the unofficial version provided by third-party developers or the community. However, please note that unofficial versions may be subject to certain risks and uncertainties, such as stability, security and compatibility issues. Before choosing an unofficial version, it is recommended to carefully understand the associated risks and take full security considerations into account.
Redmi 5 is not allowed above MIUI12, Redmi note9 is not allowed