Download Android Oreo 8.1 firmware PC version for X96 Max TV Box from here or here. Download Android Oreo 8.1 firmware SD card version for X96 Max TV Box from here or here. Download Amlogic USB Burning Tool v2.1.6 from here or download Amlogic Burn_Card_Maker v2.0.2 from here.
Archive name: X96 MAX 20181219 / X96 MAX Amlogic S905X2 Android 8.1 TV Box Firmware Update 20181219
Image: X96 MAX 20181219.img / u211-ota-root.zip
Archive file size: 846 MB / 889 MB
Model: X96 Max TV Box with 4GB/64GB and 4GB/32GB versions
Platform: AMLogic S905x2
Inside archive: firmware + recovery.img
Build number: Amlogic/u211/u211:8.1.0/OPM1.171019.011/root:userdebug/test-keys / u211-userdebug 8.1.0 OPM1.171019.011 root test-keys
System: Android verson 8.1.0
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.