title: How to build Kernel for Android phone from scratch?
body: <p>How to build a kernel from scratch for my android phone?
  It doesn't have its source code available anywhere...
  But i know its Chip set (MSM7627a) for which the code is available at codeaurora.org, can that be used?</p>
  
  <p>Now they have source code till only android version 4.2.1, is there anyway that i can update it to latest version?(4.4)</p>
  
  <p>Can I use the general source code from kernel/msm to effect the changes?</p>
  
  <p>And is it possible that I can directly use the source code from the Kernel/msm tree as it says its a starting point for MSM chip sets</p>