Updating or installing the firmware on this board is typically done via a USB flash drive (USB-to-Firmware method) rather than specialized burning tools. Preparation : Download the correct firmware file (often a file) specifically matched to your panel's resolution. Flash Drive Setup
SKR.03 LCD TV Controller Overview | PDF | Usb | Hdmi - Scribd
Before attempting any firmware updates or configuration, verify the hardware.
There are counterfeit clones of this board. The genuine version uses an STM32F103C8T6 microcontroller. Clones may have a different flash layout. Use a generic ST-Link utility instead of the vendor’s tool.
: Once the LED stops flashing or changes color, the update is finished. Restart the board to apply changes. Key Considerations Panel Compatibility