Once the LED stops blinking and stays solid (or the screen turns on), the process is complete.
To help you find the exact file you need, could you share the , as well as its native resolution ? Knowing your current problem (e.g., black screen, wrong colors) will also help me guide you to the right settings. Share public link tsumv53ruul-z1 firmware
: Typically manages HDMI (HDCP 1.4), VGA, USB, and CVBS inputs. Once the LED stops blinking and stays solid