I replaced the screen of my Xiaomi air 12. You have to disconnect the power cable, and 3 connector coming from the screen (camera, antenna (gray and black), and monitor cable ) . Unfortunately the screen is glued to the lid, so you have to heat up the glue first and then gently lift it with a suction cup. The new screen has to be glued again on the lid. On the bottom part of the monitor there is also a plastic strip that has to be glued on the monitor before you connect the cables and glue the monitor on the lid. I hope it helps.