If entered correctly, the standard TV interface will disappear, and the blue or grey will overlay on the screen.
If these do not work, it is often due to using a generic remote rather than the original manufacturer remote, or the firmware has a restricted access mode. Key Service Mode Settings Explained hdvx9as v41 service mode free
If you're having trouble with your HDVX9-AS V4.1 board, here are solutions to frequent problems. If entered correctly, the standard TV interface will
Based on pattern analysis of common technician shorthand, here are the most plausible explanations: If entered correctly