You can change the display resolution of the IPTV 250m set-top box using special keycode combinations on the IR remote control, without the need to visit the settings page.
To enact the change, tap each button from the displayed sequence in order on the remote.
RED → 1 → 0 → 8 → 0 → GREEN
RED → 1 → 0 → 8 → 0 → YELLOW
RED → 7 → 2 → 0 → GREEN
RED → 5 → 7 → 6 → YELLOW
RED → 5 → 7 → 6 → GREEN
You can also alter the function of the power button on the remote so that it puts the box into and out of standby mode.
PWR → RED → GREEN → PWR