Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
@reeered start by restoring your device with Xiaomi's tool: https://forum.xda-developers.com/t/miflash-guide-use-xiaomi-flash-tool.4262425/