Connect the power. The status LED should begin flashing, indicating the update is in progress.

To make the control board work with a specific screen, you must install firmware matching that panel's native resolution. The "1600x1200" in your query indicates that the firmware is intended for high-resolution panels, such as those often found in professional-grade 4:3 monitors or older laptop screens. Where to Find the Download

Firmware for these universal boards is typically shared on community electronics forums and technician resource sites:

: Tools like the panelook-firmware-search script on GitHub can help match your specific panel model to the correct firmware on secondary marketplaces like AliExpress. Installation Steps

: Technician groups on Facebook frequently share links to RAR files containing "all resolution" firmware packs.