The board is powered on, but there is no image (often a resolution mismatch).

The indicator LED (usually red/blue) will begin to . Do not turn off power during this blink phase.

Look for "Panel Settings" and toggle the or LVDS Bit setting (6-bit vs 8-bit). Resolution Mismatch

Caused by power surges or improper shutdowns. Technical Specifications of RR52C.03A

Used for both multimedia playback and firmware upgrades How to Install RR52C.03A Firmware via USB