Replacing the touch screen of the BMW Motorrad Navigator VI can be a delicate process.

Here's a general outline of the steps involved, but please note that it's always recommended to seek professional assistance to ensure proper installation and avoid any damage:

1: Gather the necessary tools: You may need tools such as a small Phillips screwdriver, aT6 screwdriver, a plastic pry tool or spudger, and a clean workspace.
2: Power off the Navigator VI: Make sure the device is turned off before you begin the replacement process.
3: Remove the mounting bracket: If your Navigator VI is mounted on a bracket, detach it from the motorcycle.
4: Remove the back cover: Carefully remove the back cover of the Navigator VI. This might involve removing screws or using the pry tool to release clips.
Remove the cover from the side where the power button is located to reveal the hidden screws
5:  Disconnect the old LCD screen by lifting the white clip that holds the screen in place and slide the LCD out : Locate the connection for the touch screen ribbon cable and unsolder it.
6: Pry Remove the old touch screen from the frame :  Be cautious and gentle during this step to avoid damaging the LCD. and clean the frame and the LCD from the dust or any residue.
7: Carefully apply the provided adesive to ensure a secure fit. ( apply a verry small amount if you put to much adesive will go on the LCD. Apply and  Install the new touch screen: Take the replacement touch screen and align it correctly in the designated area.
8: Resolder  the touch screen cable: after this step you are ready to assembly back the device.
9: Reassemble the device: Put the back cover back on and reattach any screws or clips that hold it in place.
10:Test the touch screen: Power on the Navigator VI and test the functionality of the new touch screen to ensure it's working properly.

Please note that these steps are a general guide, and the specific procedure may vary based on the model and design of the Navigator VI. It's always recommended to use a professional to do the replacement.