has many variations (different RAM/ROM sizes and chipsets), it is critical to find the firmware that matches your internal board.
: Place the prepared card into the MXQ box's card slot.
: Use a paperclip to press and hold the Reset button , which is usually hidden inside the AV port .
Guide to Updating MXQ Pro 4K Firmware (Android 7.1.2) via SD Card Updating your MXQ Pro 4K
: Software like Born Card Maker or a USB Burning Tool to write the firmware image to the card.
Click and wait for the "Success" message. Your SD card should now contain the bootloader partition and firmware files. Step 3: Flashing the Firmware onto the MXQ Pro 4K