Download Android Nougat 7.1 PC version for Mecool BB2 TV Box from here, here or here. Download Android Nougat 7.1 SD card version for Mecool BB2 TV Box from here, here or here. Download Android Marshmallow 6.0 for Mecool BB2 TV Box from here. Download Amlogic USB Burning Tool v2.0.8 from here or download Amlogic Burn_Card_Maker v2.0.2 from here.
Archive name: BB2-NHG47L-20170915.132236.V0619 / BB2-ota-20170915.132236.V0619
Image: BB2-NHG47L-20170915.132236.V0619.img / BB2-ota-20170915.132236.V0619.zip
Archive file size: 775 MB / 853 MB
Platform: AMLogic S912
Device: Mecool BB2 2GB/16GB
Build number: Amlogic/q20x/q20x:7.1.1/NHG47L/20170915.132236.V0619:userdebug
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.