Download Android Pie 9 stock firmware for Tanix TX6 TV Box from here or here. Download Android Nougat 7.0 stock firmware PC version for Tanix TX6 TV Box from here. Flash it from PC using LiveSuit v1.11 or from SD card using PhoenixCard v3.09. Unboxing Tanix TX6 4GB RAM + 32GB ROM Android 7.1 TV Box here & Tanix TX6 4GB RAM + 32GB ROM TV Box – First impressions & Quick Review here.
Archive name: H6_9.0_4Gddr_8822bs_20190114
Archive file size: 748 MB
Platform: Allwinner H6
OS: Android Pie 9 stock
Build number: p281-userdebug 9 PPR1.181005.003 20190114-150122 release-keys
Caution Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.