Below are some of the most reliable and publicly available firmware files for different MX9 models:
The MX9 is a generic "clone" device. Many manufacturers use the "MX9" name. Do not flash firmware from a different manufacturer (e.g., a Tanix MX9 firmware on a generic unbranded MX9). This can cause the device to stop working permanently. Always check your board revision number inside the device before flashing. firmware tv box mx9 4k android 7.1.2
Capable of 4K Ultra HD playback with H.265/HEVC and VP9 decoding. Below are some of the most reliable and