Nexus 5 w/ AOSP

Tested in KRT16M / KOT49H

Steps

Follow the steps here

http://source.android.com/source/building.html

• unlock device

• get source code Version

  • KRT16M | android-4.4_r1
  • KOT49H | android-4.4.2_r1

• get nexus driver

• fix what's missing in nexus driver

  link
  yes, pull the binary from stock ROM first If you didn't do that, your SIM cannot be used

• (optional) get /system/media/bootanimation.zip Because AOSP android doesn't have nexus animation

• (ADD: 2013/11/29 16:55) add Network Location Provider for GMS
  link
  Fixed Wireless GPS issues. Changed "config_locationProviderPackageNames" from "com.google.android.location" to "com.google.android.gms" in frameworks/base/core/res/res/values/config.xml

• start to build

    $ source build/envsetup.sh  
    $ lunch  
        => Press AOSP hammerhead userdebug  
    $ make clobber  
    $ make -j 4  
  

• flash custom recovery (CWM or TWRP)

• flash everything other than recovery

• fastboot reboot bootloader

• Press VOL-UP than power button to enter recovery mode
  Choose Advanced -> sideload mode, if you are using TWRP

    $ adb sideload gapps
        gapps link http://forum.xda-developers.com/showthread.php?t=2397942
    $ adb sideload stock_boot_animation or 
        adb push bootanimation.zip into /system/media/bootanimation.zip
  

• do a factory reset

• (ADD: 2013/12/19 16:07)
  fix green line issue in camcorder KOT49H (KRT16M has this issue?)
  Replace /system/lib/libmmcamera_interface.so by stock one
  link

Have fun!