Download Android Nougat 7.1 firmware PC version for Mecool M8S Pro Plus TV Box from here, here or here. Download Android Nougat 7.1 firmware SD card version for Mecool M8S Pro Plus TV Box from here, here or here. Download previous firmware 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: M8S PRO+ NHG47L 20171124.183803.V0928 / M8S PRO+ ota 20171124.183803.V0928
Image: M8S PRO+ NHG47L 20171124.183803.V0928.img / M8S PRO+ ota 20171124.183803.V0928.zip
Archive file size: 917 MB / 998 MB
Platform: AMLogic S905x
OS: Android Android Nougat 7.1 stock
Model: Mecool M8S Pro Plus 1GB+8GB / 2GB+16GB
Build number: Amlogic/p21x/p21x:7.1.1/NHG47L/20171124.183803.V0928: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.