1. Android build
  - Download original android source code ( M 6.0.1 ) from http://source.android.com
  - Untar opensource packages of LGV940_M_V20a_Android.tar.gz into downloaded android source directory
    a) tar -xvzf LGV940_M_Android.tar.gz
  - And, merge the source into the android source code
  - Run following scripts to build android
    a) source build/envsetup.sh
    b) lunch aosp_hammerhead-userdebug
    c) make -j4
  - When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.
  - After build, you can find output at out/target/product/generic

2. Kernel Build  
  - Uncompress using following command at the android directory
    a) tar -xvzf LGV940_M_Kernel.tar.gz
  - When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.
  - Run following scripts to build kernel
    a) cd kernel
    b) make ARCH=arm t1wifi_global_com-perf_defconfig
    c) make ARCH=arm CROSS_COMPILE=../prebuilts/gcc/linux-x86/arm/arm-eabi-4.8/bin/arm-eabi- -j4 

    * "-j4" : The number, 4, is the number of multiple jobs to be invoked simultaneously. 
	* lz4demo : More information can be found at "https://code.google.com/p/lz4/"		 
  - After build, you can find the build image(zImage) at arch/arm/boot