Unplug the USB drive and power cycle the board to see the new resolution in effect. Important Precautions
Universal boards often have a jumper to select 3.3V, 5V, or 12V . Ensure this matches your screen's requirements before powering on to avoid permanent hardware damage.
Before downloading, verify your LCD panel's model number (found on a sticker on the back of the screen) on sites like PanelLook to ensure its native resolution is exactly 1600x1200.