Tx9 Pro Android Tv Box Firmware Link
If you can share the and Wi-Fi chip from the PCB (visible by opening the case), I can point you to the correct thread. Otherwise, try searching: "TX9 Pro" "S905W" firmware (replace with your chip) on FreakTab.
PCB v2.0 + AP6255 → Use firmware with AP6255 in filename. tx9 pro android tv box firmware link
(often powered by the or S905Y4 chipset) requires matching the specific hardware version of your device. Using the wrong firmware can result in a permanent "brick". Firmware Download Links If you can share the and Wi-Fi chip