Gently insert a non-metallic item, like a toothpick or a plastic SIM ejector tool, into the AV port until you feel a soft click. Keep this button held down.

Connect your device directly to your computer using the bundled physical USB-C cable.

Armed with your hardware details, target your searches:

The official and most reliable tool for flashing firmware onto Amlogic-based TV boxes (like your MK Pro S7 Plus) is the .

Click the large button on the right side of the software interface.

Head to the official manufacturer support hub or your regional vendor's Download Center . Locate the section under the dedicated mechanical input category.