While holding the reset button, plug in the power supply.
A: Most MXQ Pro 4K boxes only boot from the SD card slot for recovery. USB flashing requires a PC and a male-to-male USB cable.
The firmware 7.1.2 update for MXQ Pro 4K brings several improvements and fixes, including:
⚠️ Flashing will erase all data. Use the correct firmware for your specific WiFi chip (e.g., 8189ETV, 6051, 9082CX). Wrong firmware = broken WiFi/remote.
While holding the reset button down, plug in the power adapter.