Orange Pi 5+

Disable blinky LEDs

Edit /etc/udev/rules.d/led_control.rules.

SUBSYSTEM=="leds", KERNEL=="blue_led", ACTION=="add", ATTR{trigger}="none"
SUBSYSTEM=="leds", KERNEL=="green_led", ACTION=="add", ATTR{trigger}="none"
SUBSYSTEM=="leds", KERNEL=="mmc0::", ACTION=="add", ATTR{trigger}="none"

Reboot the system.