Download latest Android 6.0 stock firmware SD card version for KM8 Pro TV Box from here, here or here. Download latest Android 6.0 stock firmware PC version for KM8 Pro TV Box from here, here or here. Download previous firmware from here.
Archive: Update firmware-KM8PRO-ota-20170209.112644.V0923 / KM8PRO-MHC19J-20170209.112644.V0923
Model: KM8 Pro TV with 2GB RAM + 16GB ROM
Image file size: 531 MB / 478 MB
Platform: Amlogic S912
Image name: KM8PRO-ota-20170209.112644.V0923.zip / KM8PRO-MHC19J-20170209.112644.V0923.img
Build number: Amlogic/q20x/q20x:6.0.1/MHC19J/20170209.112644.V0923:userdebug/test-keys
Inside archive: firmware + factory_update_param.aml + recovery.img
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.