| Resource | Description | | :--- | :--- | | | Stock firmware for a9s_rk3328_d4_rtl8723 board; size ~701 MB. | | Rockchip Driver Assistant v4.4 | Required for PC detection of Rockchip devices. | | Rockchip Batch Tool v1.8 | Flashing utility for Rockchip‑based boxes. | | Rom MXQ Pro 4k 5G R329Q v8.0 (Android 7.1.2 rooted) | Custom ROM for Rockchip (RK3228A/RK3229) with SV6256P Wi‑Fi chip. | | Amlogic USB Burning Tool v3.2.0 | Latest version for Amlogic S905X devices. |
Browse your computer, select your downloaded MX9 4K .img firmware file, and click open. Wait a few moments for the tool to parse the image packages. Step 4: Boot the MX9 TV Box into Loader Mode
Download and extract (v1.39 or newer is recommended for RK3229). Open the extracted folder and launch FactoryTool.exe . firmware tv box mx9 4k android 7.1.2
If your installation fails midway through the setup, evaluate these common solutions:
: Try alternating between different USB ports on the box. Ensure you are utilizing a rear USB port directly attached to your computer’s motherboard rather than a front-panel hub. | Resource | Description | | :--- |
Ensure the MX9 TV box is completely powered off and disconnected from its power supply.
Flashing custom or stock firmware on an Android TV box serves several purposes: | | Rom MXQ Pro 4k 5G R329Q v8
Click it, locate your downloaded , and click open.
Always open the plastic casing of the TV box and visually inspect the printed circuit board (PCB) text before flashing. Match the board ID number printed on the motherboard with the firmware documentation to avoid permanently breaking the device hardware.