1.  Run NovaLCT-Mars, move the cursor over the  Advanced User Login (A) and click the button.

2. Login with the password “admin”.

3. Click  Tools  and select  LED Error Detection

4. Click  Conduct LED Error Detection for Full Screen  button, then if thereexist some error LEDs, it will show red color.

Double-Click the red area and check more details.

5. Then from the pop-up window, check the individual error LED’s position.