Audi A6 C6 instrument cluster display repair

The LCD DIS display (FIS display) of the Audi A6 C6 (models from 2004 to 2011) dashboards has following issues:

• the LCD colour display of the pre-facelift models dashboards (2004-2008), with vertical connector on the rear side, lights up but it doesn't show any information;
• the LCD colour display of the pre-facelift models dashboards (2004-2008), with vertical connector on the rear side, doesn't light up or it works intermittently;
• the LCD monochrome display of the pre-facelift and post-facelift models dashboards, has pixel issues and it is unreadable;
• the LCD colour display of the post-facelift models dashboards (2008-2011), with horizontal connector on the rear, doesn't light up or it is blank.

Identify the fault of the instrument cluster, check the position of the connector on the rear side and select the repair from the drop-down menu.