Installing Android KitKat on any Android device in 2021 can be a fun project. However, make sure to follow the installation process carefully and take necessary precautions to avoid bricking your device. With the right KitKat ROM and a bit of technical expertise, you can experience the classic Android KitKat interface on your device.
For devices without an official KitKat ROM, you must a ROM from a device with identical specifications (same CPU, resolution, touch panel). Here is the 2021 workflow. install android kitkat v44 on any android device 2021