What do I need to change the makn back camera module?

The main camera on mi Mi 11 is not focusing correctly, and it's only temporarily fixed by tapping the device on the camera, indicating it's stuck. As far as I know, it's a known problem on this model. It's not in warranty anymore btw. What tools and parts do i need in order to change the camera module and while I'm in there, the battery as well?

Also do i then need to calibrate the sensor or something?