Navigate to your extracted firmware folder, select the MT6739_Android_scatter.txt file, and click Open .
Secure boot or authentication protection is blocking the connection.
make -j8 2>&1 | tee build.log
Download the correct matching your exact device model number. Extract the package to your desktop.
Contains the Linux kernel responsible for initializing the hardware.
A communication breakdown between the PC and the phone, or a corrupted download.