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README.md

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 # BPI-A64-Android 8.1
+
+----------
+
+**Prepare**
+
+Please download oversize files from this [link](https://pan.baidu.com/s/1PCvnVxngNy_D73SI4nZObQ) and merge them to the source code. 
+
+
+----------
+
+**Build**
+
+Build U-boot
+
+    $ cd brandy 
+    $ ./build.sh -p sun50iw1p1
+
+Build Lichee 
+
+    $ cd lichee
+    $ ./build.sh config
+
+     Welcome to mkscript setup progress
+     All available platform:
+        0. android
+        1. dragonboard
+        2. linux
+        3. camdroid
+     Choice [dragonboard]: 0
+     All available chip:
+        0. sun3iw1p1
+        1. sun50iw1p1
+        2. sun50iw2p1
+        3. sun50iw3p1
+     ...
+     Choice [sun50iw1p1]: 1
+     All available kern_ver:
+        0. linux-4.9
+     Choice [linux-4.9]: 0
+     All available board:
+        0. dp18
+        1. fpga
+        2. m64
+        3. m64_hdmi
+        4. m64_old
+     ...
+     Choice [m64_hdmi]: 2
+     
+     $ ./build.sh
+
+Build Android
+
+    $ cd ../android
+    $ source build/envsetup.sh
+    $ lunch
+    $ extract-bsp
+    $ make -j8
+    $ pack
+
+----------
+**Flash**
+
+The target image is packed at lichee/tools/pack/, flash it to your device by PhoenixCard or LiveSuit.