Good afternoon. I had a problem with the display. When power is applied to the display, immediately appears with a greeting, but before undergoing testing module (alternated colors of blue, red, green), the module does not respond to commands. He set to work on uart, but the inscription settings uart does not appear. I understand that soured firmware? What to do? I am the way fonts or images to not finish, the team's only display text ....

I think that's not the problem. The module does not respond to commands.... Why then ceased to perform validation with colors?

 Color testing is associated with configuration, if you disabled the configuration display, you also disable the color testing.

You can try to change the communication mode, then the module will show the configuration on the first time of power up.

Yes, you're right, thank you. You are best....